8047780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{2381}}^1$

素因数の和:2416

約数の個数: 36

約数和(自身を含む): 18308052

約数和(自身を除く): 10260272

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 2381, 3380, 4762, 9524, 11905, 23810, 30953, 47620, 61906, 123812, 154765, 309530, 402389, 619060, 804778, 1609556, 2011945, 4023890, 8047780]

約数ペア:

[(1, 8047780), (2, 4023890), (4, 2011945), (5, 1609556), (10, 804778), (13, 619060), (20, 402389), (26, 309530), (52, 154765), (65, 123812), (130, 61906), (169, 47620), (260, 30953), (338, 23810), (676, 11905), (845, 9524), (1690, 4762), (2381, 3380)]