20702012840

素因数分解:

$2^3\times 5^1\times {\mathrm{517550321}}^1$

素因数の和:517550332

約数の個数: 16

約数和(自身を含む): 46579528980

約数和(自身を除く): 25877516140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 517550321, 1035100642, 2070201284, 2587751605, 4140402568, 5175503210, 10351006420, 20702012840]

約数ペア:

[(1, 20702012840), (2, 10351006420), (4, 5175503210), (5, 4140402568), (8, 2587751605), (10, 2070201284), (20, 1035100642), (40, 517550321)]