27928720

素因数分解:

$2^4\times 5^1\times {\mathrm{349109}}^1$

素因数の和:349122

約数の個数: 20

約数和(自身を含む): 64934460

約数和(自身を除く): 37005740

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 349109, 698218, 1396436, 1745545, 2792872, 3491090, 5585744, 6982180, 13964360, 27928720]

約数ペア:

[(1, 27928720), (2, 13964360), (4, 6982180), (5, 5585744), (8, 3491090), (10, 2792872), (16, 1745545), (20, 1396436), (40, 698218), (80, 349109)]