77684080

素因数分解:

$2^4\times 5^1\times {\mathrm{971051}}^1$

素因数の和:971064

約数の個数: 20

約数和(自身を含む): 180615672

約数和(自身を除く): 102931592

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 971051, 1942102, 3884204, 4855255, 7768408, 9710510, 15536816, 19421020, 38842040, 77684080]

約数ペア:

[(1, 77684080), (2, 38842040), (4, 19421020), (5, 15536816), (8, 9710510), (10, 7768408), (16, 4855255), (20, 3884204), (40, 1942102), (80, 971051)]