12687680

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1279}}^1$

素因数の和:1327

約数の個数: 56

約数和(自身を含む): 31211520

約数和(自身を除く): 18523840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 155, 160, 248, 310, 320, 496, 620, 992, 1240, 1279, 1984, 2480, 2558, 4960, 5116, 6395, 9920, 10232, 12790, 20464, 25580, 39649, 40928, 51160, 79298, 81856, 102320, 158596, 198245, 204640, 317192, 396490, 409280, 634384, 792980, 1268768, 1585960, 2537536, 3171920, 6343840, 12687680]

約数ペア:

[(1, 12687680), (2, 6343840), (4, 3171920), (5, 2537536), (8, 1585960), (10, 1268768), (16, 792980), (20, 634384), (31, 409280), (32, 396490), (40, 317192), (62, 204640), (64, 198245), (80, 158596), (124, 102320), (155, 81856), (160, 79298), (248, 51160), (310, 40928), (320, 39649), (496, 25580), (620, 20464), (992, 12790), (1240, 10232), (1279, 9920), (1984, 6395), (2480, 5116), (2558, 4960)]