39938620

素因数分解:

$2^2\times 5^1\times {\mathrm{311}}^1\times {\mathrm{6421}}^1$

素因数の和:6741

約数の個数: 24

約数和(自身を含む): 84153888

約数和(自身を除く): 44215268

約数列:

[1, 2, 4, 5, 10, 20, 311, 622, 1244, 1555, 3110, 6220, 6421, 12842, 25684, 32105, 64210, 128420, 1996931, 3993862, 7987724, 9984655, 19969310, 39938620]

約数ペア:

[(1, 39938620), (2, 19969310), (4, 9984655), (5, 7987724), (10, 3993862), (20, 1996931), (311, 128420), (622, 64210), (1244, 32105), (1555, 25684), (3110, 12842), (6220, 6421)]