251209612

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{1621}}^1$

素因数の和:1738

約数の個数: 48

約数和(自身を含む): 485587872

約数和(自身を除く): 234378260

約数列:

[1, 2, 4, 17, 34, 43, 53, 68, 86, 106, 172, 212, 731, 901, 1462, 1621, 1802, 2279, 2924, 3242, 3604, 4558, 6484, 9116, 27557, 38743, 55114, 69703, 77486, 85913, 110228, 139406, 154972, 171826, 278812, 343652, 1184951, 1460521, 2369902, 2921042, 3694259, 4739804, 5842084, 7388518, 14777036, 62802403, 125604806, 251209612]

約数ペア:

[(1, 251209612), (2, 125604806), (4, 62802403), (17, 14777036), (34, 7388518), (43, 5842084), (53, 4739804), (68, 3694259), (86, 2921042), (106, 2369902), (172, 1460521), (212, 1184951), (731, 343652), (901, 278812), (1462, 171826), (1621, 154972), (1802, 139406), (2279, 110228), (2924, 85913), (3242, 77486), (3604, 69703), (4558, 55114), (6484, 38743), (9116, 27557)]