287788450

素因数分解:

$2^1\times 5^2\times {\mathrm{67}}^1\times {\mathrm{271}}^1\times {\mathrm{317}}^1$

素因数の和:667

約数の個数: 48

約数和(自身を含む): 547000704

約数和(自身を除く): 259212254

約数列:

[1, 2, 5, 10, 25, 50, 67, 134, 271, 317, 335, 542, 634, 670, 1355, 1585, 1675, 2710, 3170, 3350, 6775, 7925, 13550, 15850, 18157, 21239, 36314, 42478, 85907, 90785, 106195, 171814, 181570, 212390, 429535, 453925, 530975, 859070, 907850, 1061950, 2147675, 4295350, 5755769, 11511538, 28778845, 57557690, 143894225, 287788450]

約数ペア:

[(1, 287788450), (2, 143894225), (5, 57557690), (10, 28778845), (25, 11511538), (50, 5755769), (67, 4295350), (134, 2147675), (271, 1061950), (317, 907850), (335, 859070), (542, 530975), (634, 453925), (670, 429535), (1355, 212390), (1585, 181570), (1675, 171814), (2710, 106195), (3170, 90785), (3350, 85907), (6775, 42478), (7925, 36314), (13550, 21239), (15850, 18157)]