87338420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{335917}}^1$

素因数の和:335939

約数の個数: 24

約数和(自身を含む): 197519784

約数和(自身を除く): 110181364

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 335917, 671834, 1343668, 1679585, 3359170, 4366921, 6718340, 8733842, 17467684, 21834605, 43669210, 87338420]

約数ペア:

[(1, 87338420), (2, 43669210), (4, 21834605), (5, 17467684), (10, 8733842), (13, 6718340), (20, 4366921), (26, 3359170), (52, 1679585), (65, 1343668), (130, 671834), (260, 335917)]