1421680

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1367}}^1$

素因数の和:1393

約数の個数: 40

約数和(自身を含む): 3562272

約数和(自身を除く): 2140592

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 1367, 2734, 5468, 6835, 10936, 13670, 17771, 21872, 27340, 35542, 54680, 71084, 88855, 109360, 142168, 177710, 284336, 355420, 710840, 1421680]

約数ペア:

[(1, 1421680), (2, 710840), (4, 355420), (5, 284336), (8, 177710), (10, 142168), (13, 109360), (16, 88855), (20, 71084), (26, 54680), (40, 35542), (52, 27340), (65, 21872), (80, 17771), (104, 13670), (130, 10936), (208, 6835), (260, 5468), (520, 2734), (1040, 1367)]