156978440

素因数分解:

$2^3\times 5^1\times {\mathrm{3924461}}^1$

素因数の和:3924472

約数の個数: 16

約数和(自身を含む): 353201580

約数和(自身を除く): 196223140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3924461, 7848922, 15697844, 19622305, 31395688, 39244610, 78489220, 156978440]

約数ペア:

[(1, 156978440), (2, 78489220), (4, 39244610), (5, 31395688), (8, 19622305), (10, 15697844), (20, 7848922), (40, 3924461)]