65781260

素因数分解:

$2^2\times 5^1\times {\mathrm{269}}^1\times {\mathrm{12227}}^1$

素因数の和:12505

約数の個数: 24

約数和(自身を含む): 138665520

約数和(自身を除く): 72884260

約数列:

[1, 2, 4, 5, 10, 20, 269, 538, 1076, 1345, 2690, 5380, 12227, 24454, 48908, 61135, 122270, 244540, 3289063, 6578126, 13156252, 16445315, 32890630, 65781260]

約数ペア:

[(1, 65781260), (2, 32890630), (4, 16445315), (5, 13156252), (10, 6578126), (20, 3289063), (269, 244540), (538, 122270), (1076, 61135), (1345, 48908), (2690, 24454), (5380, 12227)]