180573520

素因数分解:

$2^4\times 5^1\times {\mathrm{2257169}}^1$

素因数の和:2257182

約数の個数: 20

約数和(自身を含む): 419833620

約数和(自身を除く): 239260100

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2257169, 4514338, 9028676, 11285845, 18057352, 22571690, 36114704, 45143380, 90286760, 180573520]

約数ペア:

[(1, 180573520), (2, 90286760), (4, 45143380), (5, 36114704), (8, 22571690), (10, 18057352), (16, 11285845), (20, 9028676), (40, 4514338), (80, 2257169)]