89890120

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{109}}^1\times {\mathrm{389}}^1$

素因数の和:562

約数の個数: 64

約数和(自身を含む): 208494000

約数和(自身を除く): 118603880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 109, 212, 218, 265, 389, 424, 436, 530, 545, 778, 872, 1060, 1090, 1556, 1945, 2120, 2180, 3112, 3890, 4360, 5777, 7780, 11554, 15560, 20617, 23108, 28885, 41234, 42401, 46216, 57770, 82468, 84802, 103085, 115540, 164936, 169604, 206170, 212005, 231080, 339208, 412340, 424010, 824680, 848020, 1696040, 2247253, 4494506, 8989012, 11236265, 17978024, 22472530, 44945060, 89890120]

約数ペア:

[(1, 89890120), (2, 44945060), (4, 22472530), (5, 17978024), (8, 11236265), (10, 8989012), (20, 4494506), (40, 2247253), (53, 1696040), (106, 848020), (109, 824680), (212, 424010), (218, 412340), (265, 339208), (389, 231080), (424, 212005), (436, 206170), (530, 169604), (545, 164936), (778, 115540), (872, 103085), (1060, 84802), (1090, 82468), (1556, 57770), (1945, 46216), (2120, 42401), (2180, 41234), (3112, 28885), (3890, 23108), (4360, 20617), (5777, 15560), (7780, 11554)]