166885420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{641867}}^1$

素因数の和:641889

約数の個数: 24

約数和(自身を含む): 377418384

約数和(自身を除く): 210532964

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 641867, 1283734, 2567468, 3209335, 6418670, 8344271, 12837340, 16688542, 33377084, 41721355, 83442710, 166885420]

約数ペア:

[(1, 166885420), (2, 83442710), (4, 41721355), (5, 33377084), (10, 16688542), (13, 12837340), (20, 8344271), (26, 6418670), (52, 3209335), (65, 2567468), (130, 1283734), (260, 641867)]