156996880

素因数分解:

$2^4\times 5^1\times {\mathrm{1962461}}^1$

素因数の和:1962474

約数の個数: 20

約数和(自身を含む): 365017932

約数和(自身を除く): 208021052

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1962461, 3924922, 7849844, 9812305, 15699688, 19624610, 31399376, 39249220, 78498440, 156996880]

約数ペア:

[(1, 156996880), (2, 78498440), (4, 39249220), (5, 31399376), (8, 19624610), (10, 15699688), (16, 9812305), (20, 7849844), (40, 3924922), (80, 1962461)]