127940440

素因数分解:

$2^3\times 5^1\times {\mathrm{3198511}}^1$

素因数の和:3198522

約数の個数: 16

約数和(自身を含む): 287866080

約数和(自身を除く): 159925640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3198511, 6397022, 12794044, 15992555, 25588088, 31985110, 63970220, 127940440]

約数ペア:

[(1, 127940440), (2, 63970220), (4, 31985110), (5, 25588088), (8, 15992555), (10, 12794044), (20, 6397022), (40, 3198511)]