31857040

素因数分解:

$2^4\times 5^1\times {\mathrm{398213}}^1$

素因数の和:398226

約数の個数: 20

約数和(自身を含む): 74067804

約数和(自身を除く): 42210764

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 398213, 796426, 1592852, 1991065, 3185704, 3982130, 6371408, 7964260, 15928520, 31857040]

約数ペア:

[(1, 31857040), (2, 15928520), (4, 7964260), (5, 6371408), (8, 3982130), (10, 3185704), (16, 1991065), (20, 1592852), (40, 796426), (80, 398213)]