25108520

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{3851}}^1$

素因数の和:4025

約数の個数: 32

約数和(自身を含む): 56855520

約数和(自身を除く): 31747000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1304, 1630, 3260, 3851, 6520, 7702, 15404, 19255, 30808, 38510, 77020, 154040, 627713, 1255426, 2510852, 3138565, 5021704, 6277130, 12554260, 25108520]

約数ペア:

[(1, 25108520), (2, 12554260), (4, 6277130), (5, 5021704), (8, 3138565), (10, 2510852), (20, 1255426), (40, 627713), (163, 154040), (326, 77020), (652, 38510), (815, 30808), (1304, 19255), (1630, 15404), (3260, 7702), (3851, 6520)]