2100031280

素因数分解:

$2^4\times 5^1\times {\mathrm{26250391}}^1$

素因数の和:26250404

約数の個数: 20

約数和(自身を含む): 4882572912

約数和(自身を除く): 2782541632

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 26250391, 52500782, 105001564, 131251955, 210003128, 262503910, 420006256, 525007820, 1050015640, 2100031280]

約数ペア:

[(1, 2100031280), (2, 1050015640), (4, 525007820), (5, 420006256), (8, 262503910), (10, 210003128), (16, 131251955), (20, 105001564), (40, 52500782), (80, 26250391)]