20287841296

素因数分解:

$2^4\times {\mathrm{18947}}^1\times {\mathrm{66923}}^1$

素因数の和:85878

約数の個数: 20

約数和(自身を含む): 39310354512

約数和(自身を除く): 19022513216

約数列:

[1, 2, 4, 8, 16, 18947, 37894, 66923, 75788, 133846, 151576, 267692, 303152, 535384, 1070768, 1267990081, 2535980162, 5071960324, 10143920648, 20287841296]

約数ペア:

[(1, 20287841296), (2, 10143920648), (4, 5071960324), (8, 2535980162), (16, 1267990081), (18947, 1070768), (37894, 535384), (66923, 303152), (75788, 267692), (133846, 151576)]