18747440

素因数分解:

$2^4\times 5^1\times {\mathrm{234343}}^1$

素因数の和:234356

約数の個数: 20

約数和(自身を含む): 43587984

約数和(自身を除く): 24840544

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 234343, 468686, 937372, 1171715, 1874744, 2343430, 3749488, 4686860, 9373720, 18747440]

約数ペア:

[(1, 18747440), (2, 9373720), (4, 4686860), (5, 3749488), (8, 2343430), (10, 1874744), (16, 1171715), (20, 937372), (40, 468686), (80, 234343)]