201578320

素因数分解:

$2^4\times 5^1\times {\mathrm{2519729}}^1$

素因数の和:2519742

約数の個数: 20

約数和(自身を含む): 468669780

約数和(自身を除く): 267091460

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2519729, 5039458, 10078916, 12598645, 20157832, 25197290, 40315664, 50394580, 100789160, 201578320]

約数ペア:

[(1, 201578320), (2, 100789160), (4, 50394580), (5, 40315664), (8, 25197290), (10, 20157832), (16, 12598645), (20, 10078916), (40, 5039458), (80, 2519729)]