1681420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{223}}^1$

素因数の和:274

約数の個数: 48

約数和(自身を含む): 3951360

約数和(自身を除く): 2269940

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 29, 52, 58, 65, 116, 130, 145, 223, 260, 290, 377, 446, 580, 754, 892, 1115, 1508, 1885, 2230, 2899, 3770, 4460, 5798, 6467, 7540, 11596, 12934, 14495, 25868, 28990, 32335, 57980, 64670, 84071, 129340, 168142, 336284, 420355, 840710, 1681420]

約数ペア:

[(1, 1681420), (2, 840710), (4, 420355), (5, 336284), (10, 168142), (13, 129340), (20, 84071), (26, 64670), (29, 57980), (52, 32335), (58, 28990), (65, 25868), (116, 14495), (130, 12934), (145, 11596), (223, 7540), (260, 6467), (290, 5798), (377, 4460), (446, 3770), (580, 2899), (754, 2230), (892, 1885), (1115, 1508)]