20482280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{331}}^1$

素因数の和:379

約数の個数: 128

約数和(自身を含む): 60238080

約数和(自身を除く): 39755800

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 17, 20, 26, 28, 34, 35, 40, 52, 56, 65, 68, 70, 85, 91, 104, 119, 130, 136, 140, 170, 182, 221, 238, 260, 280, 331, 340, 364, 442, 455, 476, 520, 595, 662, 680, 728, 884, 910, 952, 1105, 1190, 1324, 1547, 1655, 1768, 1820, 2210, 2317, 2380, 2648, 3094, 3310, 3640, 4303, 4420, 4634, 4760, 5627, 6188, 6620, 7735, 8606, 8840, 9268, 11254, 11585, 12376, 13240, 15470, 17212, 18536, 21515, 22508, 23170, 28135, 30121, 30940, 34424, 39389, 43030, 45016, 46340, 56270, 60242, 61880, 73151, 78778, 86060, 92680, 112540, 120484, 146302, 150605, 157556, 172120, 196945, 225080, 240968, 292604, 301210, 315112, 365755, 393890, 512057, 585208, 602420, 731510, 787780, 1024114, 1204840, 1463020, 1575560, 2048228, 2560285, 2926040, 4096456, 5120570, 10241140, 20482280]

約数ペア:

[(1, 20482280), (2, 10241140), (4, 5120570), (5, 4096456), (7, 2926040), (8, 2560285), (10, 2048228), (13, 1575560), (14, 1463020), (17, 1204840), (20, 1024114), (26, 787780), (28, 731510), (34, 602420), (35, 585208), (40, 512057), (52, 393890), (56, 365755), (65, 315112), (68, 301210), (70, 292604), (85, 240968), (91, 225080), (104, 196945), (119, 172120), (130, 157556), (136, 150605), (140, 146302), (170, 120484), (182, 112540), (221, 92680), (238, 86060), (260, 78778), (280, 73151), (331, 61880), (340, 60242), (364, 56270), (442, 46340), (455, 45016), (476, 43030), (520, 39389), (595, 34424), (662, 30940), (680, 30121), (728, 28135), (884, 23170), (910, 22508), (952, 21515), (1105, 18536), (1190, 17212), (1324, 15470), (1547, 13240), (1655, 12376), (1768, 11585), (1820, 11254), (2210, 9268), (2317, 8840), (2380, 8606), (2648, 7735), (3094, 6620), (3310, 6188), (3640, 5627), (4303, 4760), (4420, 4634)]