399509728

素因数分解:

$2^5\times {\mathrm{73}}^1\times {\mathrm{171023}}^1$

素因数の和:171106

約数の個数: 24

約数和(自身を含む): 797313888

約数和(自身を除く): 397804160

約数列:

[1, 2, 4, 8, 16, 32, 73, 146, 292, 584, 1168, 2336, 171023, 342046, 684092, 1368184, 2736368, 5472736, 12484679, 24969358, 49938716, 99877432, 199754864, 399509728]

約数ペア:

[(1, 399509728), (2, 199754864), (4, 99877432), (8, 49938716), (16, 24969358), (32, 12484679), (73, 5472736), (146, 2736368), (292, 1368184), (584, 684092), (1168, 342046), (2336, 171023)]