211339960

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{406423}}^1$

素因数の和:406447

約数の個数: 32

約数和(自身を含む): 512094240

約数和(自身を除く): 300754280

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 406423, 812846, 1625692, 2032115, 3251384, 4064230, 5283499, 8128460, 10566998, 16256920, 21133996, 26417495, 42267992, 52834990, 105669980, 211339960]

約数ペア:

[(1, 211339960), (2, 105669980), (4, 52834990), (5, 42267992), (8, 26417495), (10, 21133996), (13, 16256920), (20, 10566998), (26, 8128460), (40, 5283499), (52, 4064230), (65, 3251384), (104, 2032115), (130, 1625692), (260, 812846), (520, 406423)]