220101640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{500231}}^1$

素因数の和:500253

約数の個数: 32

約数和(自身を含む): 540250560

約数和(自身を除く): 320148920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 500231, 1000462, 2000924, 2501155, 4001848, 5002310, 5502541, 10004620, 11005082, 20009240, 22010164, 27512705, 44020328, 55025410, 110050820, 220101640]

約数ペア:

[(1, 220101640), (2, 110050820), (4, 55025410), (5, 44020328), (8, 27512705), (10, 22010164), (11, 20009240), (20, 11005082), (22, 10004620), (40, 5502541), (44, 5002310), (55, 4001848), (88, 2501155), (110, 2000924), (220, 1000462), (440, 500231)]