278034320

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{204437}}^1$

素因数の和:204467

約数の個数: 40

約数和(自身を含む): 684458424

約数和(自身を除く): 406424104

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 204437, 408874, 817748, 1022185, 1635496, 2044370, 3270992, 3475429, 4088740, 6950858, 8177480, 13901716, 16354960, 17377145, 27803432, 34754290, 55606864, 69508580, 139017160, 278034320]

約数ペア:

[(1, 278034320), (2, 139017160), (4, 69508580), (5, 55606864), (8, 34754290), (10, 27803432), (16, 17377145), (17, 16354960), (20, 13901716), (34, 8177480), (40, 6950858), (68, 4088740), (80, 3475429), (85, 3270992), (136, 2044370), (170, 1635496), (272, 1022185), (340, 817748), (680, 408874), (1360, 204437)]