18881330

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{2381}}^1$

素因数の和:2462

約数の個数: 32

約数和(自身を含む): 37216368

約数和(自身を除く): 18335038

約数列:

[1, 2, 5, 10, 13, 26, 61, 65, 122, 130, 305, 610, 793, 1586, 2381, 3965, 4762, 7930, 11905, 23810, 30953, 61906, 145241, 154765, 290482, 309530, 726205, 1452410, 1888133, 3776266, 9440665, 18881330]

約数ペア:

[(1, 18881330), (2, 9440665), (5, 3776266), (10, 1888133), (13, 1452410), (26, 726205), (61, 309530), (65, 290482), (122, 154765), (130, 145241), (305, 61906), (610, 30953), (793, 23810), (1586, 11905), (2381, 7930), (3965, 4762)]