15996817520

素因数分解:

$2^4\times 5^1\times {\mathrm{199960219}}^1$

素因数の和:199960232

約数の個数: 20

約数和(自身を含む): 37192600920

約数和(自身を除く): 21195783400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 199960219, 399920438, 799840876, 999801095, 1599681752, 1999602190, 3199363504, 3999204380, 7998408760, 15996817520]

約数ペア:

[(1, 15996817520), (2, 7998408760), (4, 3999204380), (5, 3199363504), (8, 1999602190), (10, 1599681752), (16, 999801095), (20, 799840876), (40, 399920438), (80, 199960219)]