20456487180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{113}}^1\times {\mathrm{1231}}^1$

素因数の和:1421

約数の個数: 288

約数和(自身を含む): 67482455040

約数和(自身を除く): 47025967860

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 43, 45, 57, 60, 76, 86, 90, 95, 113, 114, 129, 171, 172, 180, 190, 215, 226, 228, 258, 285, 339, 342, 380, 387, 430, 452, 516, 565, 570, 645, 678, 684, 774, 817, 855, 860, 1017, 1130, 1140, 1231, 1290, 1356, 1548, 1634, 1695, 1710, 1935, 2034, 2147, 2260, 2451, 2462, 2580, 3268, 3390, 3420, 3693, 3870, 4068, 4085, 4294, 4859, 4902, 4924, 5085, 6155, 6441, 6780, 7353, 7386, 7740, 8170, 8588, 9718, 9804, 10170, 10735, 11079, 12255, 12310, 12882, 14577, 14706, 14772, 16340, 18465, 19323, 19436, 20340, 21470, 22158, 23389, 24295, 24510, 24620, 25764, 29154, 29412, 32205, 36765, 36930, 38646, 42940, 43731, 44316, 46778, 48590, 49020, 52933, 55395, 58308, 64410, 70167, 72885, 73530, 73860, 77292, 87462, 92321, 93556, 96615, 97180, 105866, 110790, 116945, 128820, 139103, 140334, 145770, 147060, 158799, 174924, 184642, 193230, 210501, 211732, 218655, 221580, 233890, 264665, 276963, 278206, 280668, 291540, 317598, 350835, 369284, 386460, 417309, 421002, 437310, 461605, 467780, 476397, 529330, 553926, 556412, 635196, 695515, 701670, 793995, 830889, 834618, 842004, 874620, 923210, 952794, 1005727, 1052505, 1058660, 1107852, 1251927, 1384815, 1391030, 1403340, 1587990, 1661778, 1669236, 1846420, 1905588, 2011454, 2086545, 2105010, 2381985, 2503854, 2642957, 2769630, 2782060, 3017181, 3175980, 3323556, 4022908, 4154445, 4173090, 4210020, 4763970, 5007708, 5028635, 5285914, 5539260, 5981429, 6034362, 6259635, 7928871, 8308890, 8346180, 9051543, 9527940, 10057270, 10571828, 11962858, 12068724, 12519270, 13214785, 15085905, 15857742, 16617780, 17944287, 18103086, 20114540, 23786613, 23925716, 25038540, 26429570, 29907145, 30171810, 31715484, 35888574, 36206172, 39644355, 45257715, 47573226, 52859140, 53832861, 59814290, 60343620, 71777148, 79288710, 89721435, 90515430, 95146452, 107665722, 113647151, 118933065, 119628580, 158577420, 179442870, 181030860, 215331444, 227294302, 237866130, 269164305, 340941453, 358885740, 454588604, 475732260, 538328610, 568235755, 681882906, 1022824359, 1076657220, 1136471510, 1363765812, 1704707265, 2045648718, 2272943020, 3409414530, 4091297436, 5114121795, 6818829060, 10228243590, 20456487180]

約数ペア:

[(1, 20456487180), (2, 10228243590), (3, 6818829060), (4, 5114121795), (5, 4091297436), (6, 3409414530), (9, 2272943020), (10, 2045648718), (12, 1704707265), (15, 1363765812), (18, 1136471510), (19, 1076657220), (20, 1022824359), (30, 681882906), (36, 568235755), (38, 538328610), (43, 475732260), (45, 454588604), (57, 358885740), (60, 340941453), (76, 269164305), (86, 237866130), (90, 227294302), (95, 215331444), (113, 181030860), (114, 179442870), (129, 158577420), (171, 119628580), (172, 118933065), (180, 113647151), (190, 107665722), (215, 95146452), (226, 90515430), (228, 89721435), (258, 79288710), (285, 71777148), (339, 60343620), (342, 59814290), (380, 53832861), (387, 52859140), (430, 47573226), (452, 45257715), (516, 39644355), (565, 36206172), (570, 35888574), (645, 31715484), (678, 30171810), (684, 29907145), (774, 26429570), (817, 25038540), (855, 23925716), (860, 23786613), (1017, 20114540), (1130, 18103086), (1140, 17944287), (1231, 16617780), (1290, 15857742), (1356, 15085905), (1548, 13214785), (1634, 12519270), (1695, 12068724), (1710, 11962858), (1935, 10571828), (2034, 10057270), (2147, 9527940), (2260, 9051543), (2451, 8346180), (2462, 8308890), (2580, 7928871), (3268, 6259635), (3390, 6034362), (3420, 5981429), (3693, 5539260), (3870, 5285914), (4068, 5028635), (4085, 5007708), (4294, 4763970), (4859, 4210020), (4902, 4173090), (4924, 4154445), (5085, 4022908), (6155, 3323556), (6441, 3175980), (6780, 3017181), (7353, 2782060), (7386, 2769630), (7740, 2642957), (8170, 2503854), (8588, 2381985), (9718, 2105010), (9804, 2086545), (10170, 2011454), (10735, 1905588), (11079, 1846420), (12255, 1669236), (12310, 1661778), (12882, 1587990), (14577, 1403340), (14706, 1391030), (14772, 1384815), (16340, 1251927), (18465, 1107852), (19323, 1058660), (19436, 1052505), (20340, 1005727), (21470, 952794), (22158, 923210), (23389, 874620), (24295, 842004), (24510, 834618), (24620, 830889), (25764, 793995), (29154, 701670), (29412, 695515), (32205, 635196), (36765, 556412), (36930, 553926), (38646, 529330), (42940, 476397), (43731, 467780), (44316, 461605), (46778, 437310), (48590, 421002), (49020, 417309), (52933, 386460), (55395, 369284), (58308, 350835), (64410, 317598), (70167, 291540), (72885, 280668), (73530, 278206), (73860, 276963), (77292, 264665), (87462, 233890), (92321, 221580), (93556, 218655), (96615, 211732), (97180, 210501), (105866, 193230), (110790, 184642), (116945, 174924), (128820, 158799), (139103, 147060), (140334, 145770)]