123210380

素因数分解:

$2^2\times 5^1\times {\mathrm{571}}^1\times {\mathrm{10789}}^1$

素因数の和:11369

約数の個数: 24

約数和(自身を含む): 259218960

約数和(自身を除く): 136008580

約数列:

[1, 2, 4, 5, 10, 20, 571, 1142, 2284, 2855, 5710, 10789, 11420, 21578, 43156, 53945, 107890, 215780, 6160519, 12321038, 24642076, 30802595, 61605190, 123210380]

約数ペア:

[(1, 123210380), (2, 61605190), (4, 30802595), (5, 24642076), (10, 12321038), (20, 6160519), (571, 215780), (1142, 107890), (2284, 53945), (2855, 43156), (5710, 21578), (10789, 11420)]