156979072720

素因数分解:

$2^4\times 5^1\times {\mathrm{1962238409}}^1$

素因数の和:1962238422

約数の個数: 20

約数和(自身を含む): 364976344260

約数和(自身を除く): 207997271540

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1962238409, 3924476818, 7848953636, 9811192045, 15697907272, 19622384090, 31395814544, 39244768180, 78489536360, 156979072720]

約数ペア:

[(1, 156979072720), (2, 78489536360), (4, 39244768180), (5, 31395814544), (8, 19622384090), (10, 15697907272), (16, 9811192045), (20, 7848953636), (40, 3924476818), (80, 1962238409)]