20126043890

素因数分解:

$2^1\times 5^1\times {\mathrm{1021}}^1\times {\mathrm{1971209}}^1$

素因数の和:1972237

約数の個数: 16

約数和(自身を含む): 36262379160

約数和(自身を除く): 16136335270

約数列:

[1, 2, 5, 10, 1021, 2042, 5105, 10210, 1971209, 3942418, 9856045, 19712090, 2012604389, 4025208778, 10063021945, 20126043890]

約数ペア:

[(1, 20126043890), (2, 10063021945), (5, 4025208778), (10, 2012604389), (1021, 19712090), (2042, 9856045), (5105, 3942418), (10210, 1971209)]