20124524

素因数分解:

$2^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{191}}^1$

素因数の和:326

約数の個数: 48

約数和(自身を含む): 41803776

約数和(自身を除く): 21679252

約数列:

[1, 2, 4, 7, 14, 28, 53, 71, 106, 142, 191, 212, 284, 371, 382, 497, 742, 764, 994, 1337, 1484, 1988, 2674, 3763, 5348, 7526, 10123, 13561, 15052, 20246, 26341, 27122, 40492, 52682, 54244, 70861, 94927, 105364, 141722, 189854, 283444, 379708, 718733, 1437466, 2874932, 5031131, 10062262, 20124524]

約数ペア:

[(1, 20124524), (2, 10062262), (4, 5031131), (7, 2874932), (14, 1437466), (28, 718733), (53, 379708), (71, 283444), (106, 189854), (142, 141722), (191, 105364), (212, 94927), (284, 70861), (371, 54244), (382, 52682), (497, 40492), (742, 27122), (764, 26341), (994, 20246), (1337, 15052), (1484, 13561), (1988, 10123), (2674, 7526), (3763, 5348)]