635405420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2443867}}^1$

素因数の和:2443889

約数の個数: 24

約数和(自身を含む): 1436994384

約数和(自身を除く): 801588964

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 2443867, 4887734, 9775468, 12219335, 24438670, 31770271, 48877340, 63540542, 127081084, 158851355, 317702710, 635405420]

約数ペア:

[(1, 635405420), (2, 317702710), (4, 158851355), (5, 127081084), (10, 63540542), (13, 48877340), (20, 31770271), (26, 24438670), (52, 12219335), (65, 9775468), (130, 4887734), (260, 2443867)]