18681080

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{42457}}^1$

素因数の和:42479

約数の個数: 32

約数和(自身を含む): 45854640

約数和(自身を除く): 27173560

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 42457, 84914, 169828, 212285, 339656, 424570, 467027, 849140, 934054, 1698280, 1868108, 2335135, 3736216, 4670270, 9340540, 18681080]

約数ペア:

[(1, 18681080), (2, 9340540), (4, 4670270), (5, 3736216), (8, 2335135), (10, 1868108), (11, 1698280), (20, 934054), (22, 849140), (40, 467027), (44, 424570), (55, 339656), (88, 212285), (110, 169828), (220, 84914), (440, 42457)]