90018280

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{204587}}^1$

素因数の和:204609

約数の個数: 32

約数和(自身を含む): 220955040

約数和(自身を除く): 130936760

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 204587, 409174, 818348, 1022935, 1636696, 2045870, 2250457, 4091740, 4500914, 8183480, 9001828, 11252285, 18003656, 22504570, 45009140, 90018280]

約数ペア:

[(1, 90018280), (2, 45009140), (4, 22504570), (5, 18003656), (8, 11252285), (10, 9001828), (11, 8183480), (20, 4500914), (22, 4091740), (40, 2250457), (44, 2045870), (55, 1636696), (88, 1022935), (110, 818348), (220, 409174), (440, 204587)]