1321017920

素因数分解:

$2^6\times 5^1\times {\mathrm{4128181}}^1$

素因数の和:4128198

約数の個数: 28

約数和(自身を含む): 3145674684

約数和(自身を除く): 1824656764

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 4128181, 8256362, 16512724, 20640905, 33025448, 41281810, 66050896, 82563620, 132101792, 165127240, 264203584, 330254480, 660508960, 1321017920]

約数ペア:

[(1, 1321017920), (2, 660508960), (4, 330254480), (5, 264203584), (8, 165127240), (10, 132101792), (16, 82563620), (20, 66050896), (32, 41281810), (40, 33025448), (64, 20640905), (80, 16512724), (160, 8256362), (320, 4128181)]