209325740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{805099}}^1$

素因数の和:805121

約数の個数: 24

約数和(自身を含む): 473398800

約数和(自身を除く): 264073060

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 805099, 1610198, 3220396, 4025495, 8050990, 10466287, 16101980, 20932574, 41865148, 52331435, 104662870, 209325740]

約数ペア:

[(1, 209325740), (2, 104662870), (4, 52331435), (5, 41865148), (10, 20932574), (13, 16101980), (20, 10466287), (26, 8050990), (52, 4025495), (65, 3220396), (130, 1610198), (260, 805099)]