20165187640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{283}}^1\times {\mathrm{137029}}^1$

素因数の和:137336

約数の個数: 64

約数和(自身を含む): 49034815200

約数和(自身を除く): 28869627560

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 283, 520, 566, 1132, 1415, 2264, 2830, 3679, 5660, 7358, 11320, 14716, 18395, 29432, 36790, 73580, 137029, 147160, 274058, 548116, 685145, 1096232, 1370290, 1781377, 2740580, 3562754, 5481160, 7125508, 8906885, 14251016, 17813770, 35627540, 38779207, 71255080, 77558414, 155116828, 193896035, 310233656, 387792070, 504129691, 775584140, 1008259382, 1551168280, 2016518764, 2520648455, 4033037528, 5041296910, 10082593820, 20165187640]

約数ペア:

[(1, 20165187640), (2, 10082593820), (4, 5041296910), (5, 4033037528), (8, 2520648455), (10, 2016518764), (13, 1551168280), (20, 1008259382), (26, 775584140), (40, 504129691), (52, 387792070), (65, 310233656), (104, 193896035), (130, 155116828), (260, 77558414), (283, 71255080), (520, 38779207), (566, 35627540), (1132, 17813770), (1415, 14251016), (2264, 8906885), (2830, 7125508), (3679, 5481160), (5660, 3562754), (7358, 2740580), (11320, 1781377), (14716, 1370290), (18395, 1096232), (29432, 685145), (36790, 548116), (73580, 274058), (137029, 147160)]