151120

素因数分解:

$2^4\times 5^1\times {\mathrm{1889}}^1$

素因数の和:1902

約数の個数: 20

約数和(自身を含む): 351540

約数和(自身を除く): 200420

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1889, 3778, 7556, 9445, 15112, 18890, 30224, 37780, 75560, 151120]

約数ペア:

[(1, 151120), (2, 75560), (4, 37780), (5, 30224), (8, 18890), (10, 15112), (16, 9445), (20, 7556), (40, 3778), (80, 1889)]