90291400

素因数分解:

$2^3\times 5^2\times {\mathrm{43}}^1\times {\mathrm{10499}}^1$

素因数の和:10558

約数の個数: 48

約数和(自身を含む): 214830000

約数和(自身を除く): 124538600

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 43, 50, 86, 100, 172, 200, 215, 344, 430, 860, 1075, 1720, 2150, 4300, 8600, 10499, 20998, 41996, 52495, 83992, 104990, 209980, 262475, 419960, 451457, 524950, 902914, 1049900, 1805828, 2099800, 2257285, 3611656, 4514570, 9029140, 11286425, 18058280, 22572850, 45145700, 90291400]

約数ペア:

[(1, 90291400), (2, 45145700), (4, 22572850), (5, 18058280), (8, 11286425), (10, 9029140), (20, 4514570), (25, 3611656), (40, 2257285), (43, 2099800), (50, 1805828), (86, 1049900), (100, 902914), (172, 524950), (200, 451457), (215, 419960), (344, 262475), (430, 209980), (860, 104990), (1075, 83992), (1720, 52495), (2150, 41996), (4300, 20998), (8600, 10499)]