161618940

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1$

素因数の和:241

約数の個数: 288

約数和(自身を含む): 607326720

約数和(自身を除く): 445707780

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 19, 20, 21, 28, 30, 35, 36, 38, 42, 43, 45, 57, 60, 63, 70, 76, 84, 86, 90, 95, 105, 114, 126, 129, 133, 140, 157, 171, 172, 180, 190, 210, 215, 228, 252, 258, 266, 285, 301, 314, 315, 342, 380, 387, 399, 420, 430, 471, 516, 532, 570, 602, 628, 630, 645, 665, 684, 774, 785, 798, 817, 855, 860, 903, 942, 1099, 1140, 1197, 1204, 1260, 1290, 1330, 1413, 1505, 1548, 1570, 1596, 1634, 1710, 1806, 1884, 1935, 1995, 2198, 2355, 2394, 2451, 2580, 2660, 2709, 2826, 2983, 3010, 3140, 3268, 3297, 3420, 3612, 3870, 3990, 4085, 4396, 4515, 4710, 4788, 4902, 5418, 5495, 5652, 5719, 5966, 5985, 6020, 6594, 6751, 7065, 7353, 7740, 7980, 8170, 8949, 9030, 9420, 9804, 9891, 10836, 10990, 11438, 11932, 11970, 12255, 13188, 13502, 13545, 14130, 14706, 14915, 16340, 16485, 17157, 17898, 18060, 19782, 20253, 20881, 21980, 22876, 23940, 24510, 26847, 27004, 27090, 28260, 28595, 29412, 29830, 32970, 33755, 34314, 35796, 36765, 39564, 40506, 41762, 44745, 47257, 49020, 49455, 51471, 53694, 54180, 57190, 59660, 60759, 62643, 65940, 67510, 68628, 73530, 81012, 83524, 85785, 89490, 94514, 98910, 101265, 102942, 104405, 107388, 114380, 121518, 125286, 128269, 134235, 135020, 141771, 147060, 171570, 178980, 187929, 189028, 197820, 202530, 205884, 208810, 236285, 243036, 250572, 256538, 257355, 268470, 283542, 303795, 313215, 343140, 375858, 384807, 405060, 417620, 425313, 472570, 513076, 514710, 536940, 567084, 607590, 626430, 641345, 708855, 751716, 769614, 850626, 897883, 939645, 945140, 1029420, 1154421, 1215180, 1252860, 1282690, 1417710, 1539228, 1701252, 1795766, 1879290, 1924035, 2126565, 2308842, 2565380, 2693649, 2835420, 3591532, 3758580, 3848070, 4253130, 4489415, 4617684, 5387298, 5772105, 7696140, 8080947, 8506260, 8978830, 10774596, 11544210, 13468245, 16161894, 17957660, 23088420, 26936490, 32323788, 40404735, 53872980, 80809470, 161618940]

約数ペア:

[(1, 161618940), (2, 80809470), (3, 53872980), (4, 40404735), (5, 32323788), (6, 26936490), (7, 23088420), (9, 17957660), (10, 16161894), (12, 13468245), (14, 11544210), (15, 10774596), (18, 8978830), (19, 8506260), (20, 8080947), (21, 7696140), (28, 5772105), (30, 5387298), (35, 4617684), (36, 4489415), (38, 4253130), (42, 3848070), (43, 3758580), (45, 3591532), (57, 2835420), (60, 2693649), (63, 2565380), (70, 2308842), (76, 2126565), (84, 1924035), (86, 1879290), (90, 1795766), (95, 1701252), (105, 1539228), (114, 1417710), (126, 1282690), (129, 1252860), (133, 1215180), (140, 1154421), (157, 1029420), (171, 945140), (172, 939645), (180, 897883), (190, 850626), (210, 769614), (215, 751716), (228, 708855), (252, 641345), (258, 626430), (266, 607590), (285, 567084), (301, 536940), (314, 514710), (315, 513076), (342, 472570), (380, 425313), (387, 417620), (399, 405060), (420, 384807), (430, 375858), (471, 343140), (516, 313215), (532, 303795), (570, 283542), (602, 268470), (628, 257355), (630, 256538), (645, 250572), (665, 243036), (684, 236285), (774, 208810), (785, 205884), (798, 202530), (817, 197820), (855, 189028), (860, 187929), (903, 178980), (942, 171570), (1099, 147060), (1140, 141771), (1197, 135020), (1204, 134235), (1260, 128269), (1290, 125286), (1330, 121518), (1413, 114380), (1505, 107388), (1548, 104405), (1570, 102942), (1596, 101265), (1634, 98910), (1710, 94514), (1806, 89490), (1884, 85785), (1935, 83524), (1995, 81012), (2198, 73530), (2355, 68628), (2394, 67510), (2451, 65940), (2580, 62643), (2660, 60759), (2709, 59660), (2826, 57190), (2983, 54180), (3010, 53694), (3140, 51471), (3268, 49455), (3297, 49020), (3420, 47257), (3612, 44745), (3870, 41762), (3990, 40506), (4085, 39564), (4396, 36765), (4515, 35796), (4710, 34314), (4788, 33755), (4902, 32970), (5418, 29830), (5495, 29412), (5652, 28595), (5719, 28260), (5966, 27090), (5985, 27004), (6020, 26847), (6594, 24510), (6751, 23940), (7065, 22876), (7353, 21980), (7740, 20881), (7980, 20253), (8170, 19782), (8949, 18060), (9030, 17898), (9420, 17157), (9804, 16485), (9891, 16340), (10836, 14915), (10990, 14706), (11438, 14130), (11932, 13545), (11970, 13502), (12255, 13188)]