64674005

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{311}}^1$

素因数の和:545

約数の個数: 32

約数和(自身を含む): 89856000

約数和(自身を除く): 25181995

約数列:

[1, 5, 11, 19, 55, 95, 199, 209, 311, 995, 1045, 1555, 2189, 3421, 3781, 5909, 10945, 17105, 18905, 29545, 41591, 61889, 64999, 207955, 309445, 324995, 680779, 1175891, 3403895, 5879455, 12934801, 64674005]

約数ペア:

[(1, 64674005), (5, 12934801), (11, 5879455), (19, 3403895), (55, 1175891), (95, 680779), (199, 324995), (209, 309445), (311, 207955), (995, 64999), (1045, 61889), (1555, 41591), (2189, 29545), (3421, 18905), (3781, 17105), (5909, 10945)]