80495740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{309599}}^1$

素因数の和:309621

約数の個数: 24

約数和(自身を含む): 182044800

約数和(自身を除く): 101549060

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 309599, 619198, 1238396, 1547995, 3095990, 4024787, 6191980, 8049574, 16099148, 20123935, 40247870, 80495740]

約数ペア:

[(1, 80495740), (2, 40247870), (4, 20123935), (5, 16099148), (10, 8049574), (13, 6191980), (20, 4024787), (26, 3095990), (52, 1547995), (65, 1238396), (130, 619198), (260, 309599)]