51687740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{3259}}^1$

素因数の和:3342

約数の個数: 48

約数和(自身を含む): 118846560

約数和(自身を除く): 67158820

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 61, 65, 122, 130, 244, 260, 305, 610, 793, 1220, 1586, 3172, 3259, 3965, 6518, 7930, 13036, 15860, 16295, 32590, 42367, 65180, 84734, 169468, 198799, 211835, 397598, 423670, 795196, 847340, 993995, 1987990, 2584387, 3975980, 5168774, 10337548, 12921935, 25843870, 51687740]

約数ペア:

[(1, 51687740), (2, 25843870), (4, 12921935), (5, 10337548), (10, 5168774), (13, 3975980), (20, 2584387), (26, 1987990), (52, 993995), (61, 847340), (65, 795196), (122, 423670), (130, 397598), (244, 211835), (260, 198799), (305, 169468), (610, 84734), (793, 65180), (1220, 42367), (1586, 32590), (3172, 16295), (3259, 15860), (3965, 13036), (6518, 7930)]