20572312

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{331}}^1\times {\mathrm{457}}^1$

素因数の和:811

約数の個数: 32

約数和(自身を含む): 41055120

約数和(自身を除く): 20482808

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 331, 457, 662, 914, 1324, 1828, 2648, 3656, 5627, 7769, 11254, 15538, 22508, 31076, 45016, 62152, 151267, 302534, 605068, 1210136, 2571539, 5143078, 10286156, 20572312]

約数ペア:

[(1, 20572312), (2, 10286156), (4, 5143078), (8, 2571539), (17, 1210136), (34, 605068), (68, 302534), (136, 151267), (331, 62152), (457, 45016), (662, 31076), (914, 22508), (1324, 15538), (1828, 11254), (2648, 7769), (3656, 5627)]