28749820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{130681}}^1$

素因数の和:130701

約数の個数: 24

約数和(自身を含む): 65863728

約数和(自身を除く): 37113908

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 130681, 261362, 522724, 653405, 1306810, 1437491, 2613620, 2874982, 5749964, 7187455, 14374910, 28749820]

約数ペア:

[(1, 28749820), (2, 14374910), (4, 7187455), (5, 5749964), (10, 2874982), (11, 2613620), (20, 1437491), (22, 1306810), (44, 653405), (55, 522724), (110, 261362), (220, 130681)]