25887280

素因数分解:

$2^4\times 5^1\times {\mathrm{323591}}^1$

素因数の和:323604

約数の個数: 20

約数和(自身を含む): 60188112

約数和(自身を除く): 34300832

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 323591, 647182, 1294364, 1617955, 2588728, 3235910, 5177456, 6471820, 12943640, 25887280]

約数ペア:

[(1, 25887280), (2, 12943640), (4, 6471820), (5, 5177456), (8, 3235910), (10, 2588728), (16, 1617955), (20, 1294364), (40, 647182), (80, 323591)]