25517744080

素因数分解:

$2^4\times 5^1\times {\mathrm{318971801}}^1$

素因数の和:318971814

約数の個数: 20

約数和(自身を含む): 59328755172

約数和(自身を除く): 33811011092

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 318971801, 637943602, 1275887204, 1594859005, 2551774408, 3189718010, 5103548816, 6379436020, 12758872040, 25517744080]

約数ペア:

[(1, 25517744080), (2, 12758872040), (4, 6379436020), (5, 5103548816), (8, 3189718010), (10, 2551774408), (16, 1594859005), (20, 1275887204), (40, 637943602), (80, 318971801)]