287432855

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{4139}}^1$

素因数の和:4223

約数の個数: 32

約数和(自身を含む): 393465600

約数和(自身を除く): 106032745

約数列:

[1, 5, 17, 19, 43, 85, 95, 215, 323, 731, 817, 1615, 3655, 4085, 4139, 13889, 20695, 69445, 70363, 78641, 177977, 351815, 393205, 889885, 1336897, 3025609, 3381563, 6684485, 15128045, 16907815, 57486571, 287432855]

約数ペア:

[(1, 287432855), (5, 57486571), (17, 16907815), (19, 15128045), (43, 6684485), (85, 3381563), (95, 3025609), (215, 1336897), (323, 889885), (731, 393205), (817, 351815), (1615, 177977), (3655, 78641), (4085, 70363), (4139, 69445), (13889, 20695)]