400436740

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{277}}^1\times {\mathrm{6571}}^1$

素因数の和:6868

約数の個数: 48

約数和(自身を含む): 920816064

約数和(自身を除く): 520379324

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 277, 554, 1108, 1385, 2770, 3047, 5540, 6094, 6571, 12188, 13142, 15235, 26284, 30470, 32855, 60940, 65710, 72281, 131420, 144562, 289124, 361405, 722810, 1445620, 1820167, 3640334, 7280668, 9100835, 18201670, 20021837, 36403340, 40043674, 80087348, 100109185, 200218370, 400436740]

約数ペア:

[(1, 400436740), (2, 200218370), (4, 100109185), (5, 80087348), (10, 40043674), (11, 36403340), (20, 20021837), (22, 18201670), (44, 9100835), (55, 7280668), (110, 3640334), (220, 1820167), (277, 1445620), (554, 722810), (1108, 361405), (1385, 289124), (2770, 144562), (3047, 131420), (5540, 72281), (6094, 65710), (6571, 60940), (12188, 32855), (13142, 30470), (15235, 26284)]