31205020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{881}}^1$

素因数の和:931

約数の個数: 96

約数和(自身を含む): 85349376

約数和(自身を除く): 54144356

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 23, 28, 35, 44, 46, 55, 70, 77, 92, 110, 115, 140, 154, 161, 220, 230, 253, 308, 322, 385, 460, 506, 644, 770, 805, 881, 1012, 1265, 1540, 1610, 1762, 1771, 2530, 3220, 3524, 3542, 4405, 5060, 6167, 7084, 8810, 8855, 9691, 12334, 17620, 17710, 19382, 20263, 24668, 30835, 35420, 38764, 40526, 48455, 61670, 67837, 81052, 96910, 101315, 123340, 135674, 141841, 193820, 202630, 222893, 271348, 283682, 339185, 405260, 445786, 567364, 678370, 709205, 891572, 1114465, 1356740, 1418410, 1560251, 2228930, 2836820, 3120502, 4457860, 6241004, 7801255, 15602510, 31205020]

約数ペア:

[(1, 31205020), (2, 15602510), (4, 7801255), (5, 6241004), (7, 4457860), (10, 3120502), (11, 2836820), (14, 2228930), (20, 1560251), (22, 1418410), (23, 1356740), (28, 1114465), (35, 891572), (44, 709205), (46, 678370), (55, 567364), (70, 445786), (77, 405260), (92, 339185), (110, 283682), (115, 271348), (140, 222893), (154, 202630), (161, 193820), (220, 141841), (230, 135674), (253, 123340), (308, 101315), (322, 96910), (385, 81052), (460, 67837), (506, 61670), (644, 48455), (770, 40526), (805, 38764), (881, 35420), (1012, 30835), (1265, 24668), (1540, 20263), (1610, 19382), (1762, 17710), (1771, 17620), (2530, 12334), (3220, 9691), (3524, 8855), (3542, 8810), (4405, 7084), (5060, 6167)]