81403090

素因数分解:

$2^1\times 5^1\times {\mathrm{2521}}^1\times {\mathrm{3229}}^1$

素因数の和:5757

約数の個数: 16

約数和(自身を含む): 146629080

約数和(自身を除く): 65225990

約数列:

[1, 2, 5, 10, 2521, 3229, 5042, 6458, 12605, 16145, 25210, 32290, 8140309, 16280618, 40701545, 81403090]

約数ペア:

[(1, 81403090), (2, 40701545), (5, 16280618), (10, 8140309), (2521, 32290), (3229, 25210), (5042, 16145), (6458, 12605)]