201331820

素因数分解:

$2^2\times 5^1\times {\mathrm{1277}}^1\times {\mathrm{7883}}^1$

素因数の和:9169

約数の個数: 24

約数和(自身を含む): 423181584

約数和(自身を除く): 221849764

約数列:

[1, 2, 4, 5, 10, 20, 1277, 2554, 5108, 6385, 7883, 12770, 15766, 25540, 31532, 39415, 78830, 157660, 10066591, 20133182, 40266364, 50332955, 100665910, 201331820]

約数ペア:

[(1, 201331820), (2, 100665910), (4, 50332955), (5, 40266364), (10, 20133182), (20, 10066591), (1277, 157660), (2554, 78830), (5108, 39415), (6385, 31532), (7883, 25540), (12770, 15766)]