88408720

素因数分解:

$2^4\times 5^1\times {\mathrm{1105109}}^1$

素因数の和:1105122

約数の個数: 20

約数和(自身を含む): 205550460

約数和(自身を除く): 117141740

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1105109, 2210218, 4420436, 5525545, 8840872, 11051090, 17681744, 22102180, 44204360, 88408720]

約数ペア:

[(1, 88408720), (2, 44204360), (4, 22102180), (5, 17681744), (8, 11051090), (10, 8840872), (16, 5525545), (20, 4420436), (40, 2210218), (80, 1105109)]