1621194640

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1558841}}^1$

素因数の和:1558867

約数の個数: 40

約数和(自身を含む): 4059224568

約数和(自身を除く): 2438029928

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 1558841, 3117682, 6235364, 7794205, 12470728, 15588410, 20264933, 24941456, 31176820, 40529866, 62353640, 81059732, 101324665, 124707280, 162119464, 202649330, 324238928, 405298660, 810597320, 1621194640]

約数ペア:

[(1, 1621194640), (2, 810597320), (4, 405298660), (5, 324238928), (8, 202649330), (10, 162119464), (13, 124707280), (16, 101324665), (20, 81059732), (26, 62353640), (40, 40529866), (52, 31176820), (65, 24941456), (80, 20264933), (104, 15588410), (130, 12470728), (208, 7794205), (260, 6235364), (520, 3117682), (1040, 1558841)]