308973520

素因数分解:

$2^4\times 5^1\times {\mathrm{3862169}}^1$

素因数の和:3862182

約数の個数: 20

約数和(自身を含む): 718363620

約数和(自身を除く): 409390100

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 3862169, 7724338, 15448676, 19310845, 30897352, 38621690, 61794704, 77243380, 154486760, 308973520]

約数ペア:

[(1, 308973520), (2, 154486760), (4, 77243380), (5, 61794704), (8, 38621690), (10, 30897352), (16, 19310845), (20, 15448676), (40, 7724338), (80, 3862169)]