28448720

素因数分解:

$2^4\times 5^1\times {\mathrm{355609}}^1$

素因数の和:355622

約数の個数: 20

約数和(自身を含む): 66143460

約数和(自身を除く): 37694740

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 355609, 711218, 1422436, 1778045, 2844872, 3556090, 5689744, 7112180, 14224360, 28448720]

約数ペア:

[(1, 28448720), (2, 14224360), (4, 7112180), (5, 5689744), (8, 3556090), (10, 2844872), (16, 1778045), (20, 1422436), (40, 711218), (80, 355609)]