12917740

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{827}}^1$

素因数の和:918

約数の個数: 48

約数和(自身を含む): 30046464

約数和(自身を除く): 17128724

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 71, 110, 142, 220, 284, 355, 710, 781, 827, 1420, 1562, 1654, 3124, 3308, 3905, 4135, 7810, 8270, 9097, 15620, 16540, 18194, 36388, 45485, 58717, 90970, 117434, 181940, 234868, 293585, 587170, 645887, 1174340, 1291774, 2583548, 3229435, 6458870, 12917740]

約数ペア:

[(1, 12917740), (2, 6458870), (4, 3229435), (5, 2583548), (10, 1291774), (11, 1174340), (20, 645887), (22, 587170), (44, 293585), (55, 234868), (71, 181940), (110, 117434), (142, 90970), (220, 58717), (284, 45485), (355, 36388), (710, 18194), (781, 16540), (827, 15620), (1420, 9097), (1562, 8270), (1654, 7810), (3124, 4135), (3308, 3905)]