3998020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{15377}}^1$

素因数の和:15399

約数の個数: 24

約数和(自身を含む): 9042264

約数和(自身を除く): 5044244

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 15377, 30754, 61508, 76885, 153770, 199901, 307540, 399802, 799604, 999505, 1999010, 3998020]

約数ペア:

[(1, 3998020), (2, 1999010), (4, 999505), (5, 799604), (10, 399802), (13, 307540), (20, 199901), (26, 153770), (52, 76885), (65, 61508), (130, 30754), (260, 15377)]