31869640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{72431}}^1$

素因数の和:72453

約数の個数: 32

約数和(自身を含む): 78226560

約数和(自身を除く): 46356920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 72431, 144862, 289724, 362155, 579448, 724310, 796741, 1448620, 1593482, 2897240, 3186964, 3983705, 6373928, 7967410, 15934820, 31869640]

約数ペア:

[(1, 31869640), (2, 15934820), (4, 7967410), (5, 6373928), (8, 3983705), (10, 3186964), (11, 2897240), (20, 1593482), (22, 1448620), (40, 796741), (44, 724310), (55, 579448), (88, 362155), (110, 289724), (220, 144862), (440, 72431)]