20746440

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1$

素因数の和:85

約数の個数: 288

約数和(自身を含む): 82218240

約数和(自身を除く): 61471800

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 13, 15, 18, 20, 22, 24, 26, 30, 31, 33, 36, 39, 40, 44, 45, 52, 55, 60, 62, 65, 66, 72, 78, 88, 90, 93, 99, 104, 110, 117, 120, 124, 130, 132, 143, 155, 156, 165, 169, 180, 186, 195, 198, 220, 234, 248, 260, 264, 279, 286, 310, 312, 330, 338, 341, 360, 372, 390, 396, 403, 429, 440, 465, 468, 495, 507, 520, 558, 572, 585, 620, 660, 676, 682, 715, 744, 780, 792, 806, 845, 858, 930, 936, 990, 1014, 1023, 1116, 1144, 1170, 1209, 1240, 1287, 1320, 1352, 1364, 1395, 1430, 1521, 1560, 1612, 1690, 1705, 1716, 1859, 1860, 1980, 2015, 2028, 2046, 2145, 2232, 2340, 2418, 2535, 2574, 2728, 2790, 2860, 3042, 3069, 3224, 3380, 3410, 3432, 3627, 3718, 3720, 3960, 4030, 4056, 4092, 4290, 4433, 4680, 4836, 5070, 5115, 5148, 5239, 5577, 5580, 5720, 6045, 6084, 6138, 6435, 6760, 6820, 7254, 7436, 7605, 8060, 8184, 8580, 8866, 9295, 9672, 10140, 10230, 10296, 10478, 11154, 11160, 12090, 12168, 12276, 12870, 13299, 13640, 14508, 14872, 15210, 15345, 15717, 16120, 16731, 17160, 17732, 18135, 18590, 20280, 20460, 20956, 22165, 22308, 24180, 24552, 25740, 26195, 26598, 27885, 29016, 30420, 30690, 31434, 33462, 35464, 36270, 37180, 39897, 40920, 41912, 44330, 44616, 47151, 48360, 51480, 52390, 53196, 55770, 57629, 60840, 61380, 62868, 66495, 66924, 72540, 74360, 78585, 79794, 83655, 88660, 94302, 104780, 106392, 111540, 115258, 122760, 125736, 132990, 133848, 145080, 157170, 159588, 167310, 172887, 177320, 188604, 199485, 209560, 223080, 230516, 235755, 265980, 288145, 314340, 319176, 334620, 345774, 377208, 398970, 461032, 471510, 518661, 531960, 576290, 628680, 669240, 691548, 797940, 864435, 943020, 1037322, 1152580, 1383096, 1595880, 1728870, 1886040, 2074644, 2305160, 2593305, 3457740, 4149288, 5186610, 6915480, 10373220, 20746440]

約数ペア:

[(1, 20746440), (2, 10373220), (3, 6915480), (4, 5186610), (5, 4149288), (6, 3457740), (8, 2593305), (9, 2305160), (10, 2074644), (11, 1886040), (12, 1728870), (13, 1595880), (15, 1383096), (18, 1152580), (20, 1037322), (22, 943020), (24, 864435), (26, 797940), (30, 691548), (31, 669240), (33, 628680), (36, 576290), (39, 531960), (40, 518661), (44, 471510), (45, 461032), (52, 398970), (55, 377208), (60, 345774), (62, 334620), (65, 319176), (66, 314340), (72, 288145), (78, 265980), (88, 235755), (90, 230516), (93, 223080), (99, 209560), (104, 199485), (110, 188604), (117, 177320), (120, 172887), (124, 167310), (130, 159588), (132, 157170), (143, 145080), (155, 133848), (156, 132990), (165, 125736), (169, 122760), (180, 115258), (186, 111540), (195, 106392), (198, 104780), (220, 94302), (234, 88660), (248, 83655), (260, 79794), (264, 78585), (279, 74360), (286, 72540), (310, 66924), (312, 66495), (330, 62868), (338, 61380), (341, 60840), (360, 57629), (372, 55770), (390, 53196), (396, 52390), (403, 51480), (429, 48360), (440, 47151), (465, 44616), (468, 44330), (495, 41912), (507, 40920), (520, 39897), (558, 37180), (572, 36270), (585, 35464), (620, 33462), (660, 31434), (676, 30690), (682, 30420), (715, 29016), (744, 27885), (780, 26598), (792, 26195), (806, 25740), (845, 24552), (858, 24180), (930, 22308), (936, 22165), (990, 20956), (1014, 20460), (1023, 20280), (1116, 18590), (1144, 18135), (1170, 17732), (1209, 17160), (1240, 16731), (1287, 16120), (1320, 15717), (1352, 15345), (1364, 15210), (1395, 14872), (1430, 14508), (1521, 13640), (1560, 13299), (1612, 12870), (1690, 12276), (1705, 12168), (1716, 12090), (1859, 11160), (1860, 11154), (1980, 10478), (2015, 10296), (2028, 10230), (2046, 10140), (2145, 9672), (2232, 9295), (2340, 8866), (2418, 8580), (2535, 8184), (2574, 8060), (2728, 7605), (2790, 7436), (2860, 7254), (3042, 6820), (3069, 6760), (3224, 6435), (3380, 6138), (3410, 6084), (3432, 6045), (3627, 5720), (3718, 5580), (3720, 5577), (3960, 5239), (4030, 5148), (4056, 5115), (4092, 5070), (4290, 4836), (4433, 4680)]