158545040

素因数分解:

$2^4\times 5^1\times {\mathrm{1981813}}^1$

素因数の和:1981826

約数の個数: 20

約数和(自身を含む): 368617404

約数和(自身を除く): 210072364

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1981813, 3963626, 7927252, 9909065, 15854504, 19818130, 31709008, 39636260, 79272520, 158545040]

約数ペア:

[(1, 158545040), (2, 79272520), (4, 39636260), (5, 31709008), (8, 19818130), (10, 15854504), (16, 9909065), (20, 7927252), (40, 3963626), (80, 1981813)]