81416740

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{239461}}^1$

素因数の和:239487

約数の個数: 24

約数和(自身を含む): 181033272

約数和(自身を除く): 99616532

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 239461, 478922, 957844, 1197305, 2394610, 4070837, 4789220, 8141674, 16283348, 20354185, 40708370, 81416740]

約数ペア:

[(1, 81416740), (2, 40708370), (4, 20354185), (5, 16283348), (10, 8141674), (17, 4789220), (20, 4070837), (34, 2394610), (68, 1197305), (85, 957844), (170, 478922), (340, 239461)]