20415490

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{2399}}^1$

素因数の和:2466

約数の個数: 32

約数和(自身を含む): 39398400

約数和(自身を除く): 18982910

約数列:

[1, 2, 5, 10, 23, 37, 46, 74, 115, 185, 230, 370, 851, 1702, 2399, 4255, 4798, 8510, 11995, 23990, 55177, 88763, 110354, 177526, 275885, 443815, 551770, 887630, 2041549, 4083098, 10207745, 20415490]

約数ペア:

[(1, 20415490), (2, 10207745), (5, 4083098), (10, 2041549), (23, 887630), (37, 551770), (46, 443815), (74, 275885), (115, 177526), (185, 110354), (230, 88763), (370, 55177), (851, 23990), (1702, 11995), (2399, 8510), (4255, 4798)]