161870020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{622577}}^1$

素因数の和:622599

約数の個数: 24

約数和(自身を含む): 366075864

約数和(自身を除く): 204205844

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 622577, 1245154, 2490308, 3112885, 6225770, 8093501, 12451540, 16187002, 32374004, 40467505, 80935010, 161870020]

約数ペア:

[(1, 161870020), (2, 80935010), (4, 40467505), (5, 32374004), (10, 16187002), (13, 12451540), (20, 8093501), (26, 6225770), (52, 3112885), (65, 2490308), (130, 1245154), (260, 622577)]