20161460

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{811}}^1$

素因数の和:944

約数の個数: 48

約数和(自身を含む): 46654272

約数和(自身を除く): 26492812

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 113, 220, 226, 452, 565, 811, 1130, 1243, 1622, 2260, 2486, 3244, 4055, 4972, 6215, 8110, 8921, 12430, 16220, 17842, 24860, 35684, 44605, 89210, 91643, 178420, 183286, 366572, 458215, 916430, 1008073, 1832860, 2016146, 4032292, 5040365, 10080730, 20161460]

約数ペア:

[(1, 20161460), (2, 10080730), (4, 5040365), (5, 4032292), (10, 2016146), (11, 1832860), (20, 1008073), (22, 916430), (44, 458215), (55, 366572), (110, 183286), (113, 178420), (220, 91643), (226, 89210), (452, 44605), (565, 35684), (811, 24860), (1130, 17842), (1243, 16220), (1622, 12430), (2260, 8921), (2486, 8110), (3244, 6215), (4055, 4972)]