80252560

素因数分解:

$2^4\times 5^1\times {\mathrm{557}}^1\times {\mathrm{1801}}^1$

素因数の和:2371

約数の個数: 40

約数和(自身を含む): 187025976

約数和(自身を除く): 106773416

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 557, 1114, 1801, 2228, 2785, 3602, 4456, 5570, 7204, 8912, 9005, 11140, 14408, 18010, 22280, 28816, 36020, 44560, 72040, 144080, 1003157, 2006314, 4012628, 5015785, 8025256, 10031570, 16050512, 20063140, 40126280, 80252560]

約数ペア:

[(1, 80252560), (2, 40126280), (4, 20063140), (5, 16050512), (8, 10031570), (10, 8025256), (16, 5015785), (20, 4012628), (40, 2006314), (80, 1003157), (557, 144080), (1114, 72040), (1801, 44560), (2228, 36020), (2785, 28816), (3602, 22280), (4456, 18010), (5570, 14408), (7204, 11140), (8912, 9005)]