28288880

素因数分解:

$2^4\times 5^1\times {\mathrm{353611}}^1$

素因数の和:353624

約数の個数: 20

約数和(自身を含む): 65771832

約数和(自身を除く): 37482952

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 353611, 707222, 1414444, 1768055, 2828888, 3536110, 5657776, 7072220, 14144440, 28288880]

約数ペア:

[(1, 28288880), (2, 14144440), (4, 7072220), (5, 5657776), (8, 3536110), (10, 2828888), (16, 1768055), (20, 1414444), (40, 707222), (80, 353611)]