207999740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{799999}}^1$

素因数の和:800021

約数の個数: 24

約数和(自身を含む): 470400000

約数和(自身を除く): 262400260

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 799999, 1599998, 3199996, 3999995, 7999990, 10399987, 15999980, 20799974, 41599948, 51999935, 103999870, 207999740]

約数ペア:

[(1, 207999740), (2, 103999870), (4, 51999935), (5, 41599948), (10, 20799974), (13, 15999980), (20, 10399987), (26, 7999990), (52, 3999995), (65, 3199996), (130, 1599998), (260, 799999)]