28489100

素因数分解:

$2^2\times 5^2\times {\mathrm{431}}^1\times {\mathrm{661}}^1$

素因数の和:1106

約数の個数: 36

約数和(自身を含む): 62058528

約数和(自身を除く): 33569428

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 431, 661, 862, 1322, 1724, 2155, 2644, 3305, 4310, 6610, 8620, 10775, 13220, 16525, 21550, 33050, 43100, 66100, 284891, 569782, 1139564, 1424455, 2848910, 5697820, 7122275, 14244550, 28489100]

約数ペア:

[(1, 28489100), (2, 14244550), (4, 7122275), (5, 5697820), (10, 2848910), (20, 1424455), (25, 1139564), (50, 569782), (100, 284891), (431, 66100), (661, 43100), (862, 33050), (1322, 21550), (1724, 16525), (2155, 13220), (2644, 10775), (3305, 8620), (4310, 6610)]