388049680

素因数分解:

$2^4\times 5^1\times {\mathrm{4850621}}^1$

素因数の和:4850634

約数の個数: 20

約数和(自身を含む): 902215692

約数和(自身を除く): 514166012

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 4850621, 9701242, 19402484, 24253105, 38804968, 48506210, 77609936, 97012420, 194024840, 388049680]

約数ペア:

[(1, 388049680), (2, 194024840), (4, 97012420), (5, 77609936), (8, 48506210), (10, 38804968), (16, 24253105), (20, 19402484), (40, 9701242), (80, 4850621)]