20683090

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{977}}^1$

素因数の和:1086

約数の個数: 32

約数和(自身を含む): 39080880

約数和(自身を除く): 18397790

約数列:

[1, 2, 5, 10, 29, 58, 73, 145, 146, 290, 365, 730, 977, 1954, 2117, 4234, 4885, 9770, 10585, 21170, 28333, 56666, 71321, 141665, 142642, 283330, 356605, 713210, 2068309, 4136618, 10341545, 20683090]

約数ペア:

[(1, 20683090), (2, 10341545), (5, 4136618), (10, 2068309), (29, 713210), (58, 356605), (73, 283330), (145, 142642), (146, 141665), (290, 71321), (365, 56666), (730, 28333), (977, 21170), (1954, 10585), (2117, 9770), (4234, 4885)]