20178440105

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{4479121}}^1$

素因数の和:4479196

約数の個数: 16

約数和(自身を含む): 26122239504

約数和(自身を除く): 5943799399

約数列:

[1, 5, 17, 53, 85, 265, 901, 4505, 4479121, 22395605, 76145057, 237393413, 380725285, 1186967065, 4035688021, 20178440105]

約数ペア:

[(1, 20178440105), (5, 4035688021), (17, 1186967065), (53, 380725285), (85, 237393413), (265, 76145057), (901, 22395605), (4505, 4479121)]