20664410

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{3877}}^1$

素因数の和:3938

約数の個数: 32

約数和(自身を含む): 41044752

約数和(自身を除く): 20380342

約数列:

[1, 2, 5, 10, 13, 26, 41, 65, 82, 130, 205, 410, 533, 1066, 2665, 3877, 5330, 7754, 19385, 38770, 50401, 100802, 158957, 252005, 317914, 504010, 794785, 1589570, 2066441, 4132882, 10332205, 20664410]

約数ペア:

[(1, 20664410), (2, 10332205), (5, 4132882), (10, 2066441), (13, 1589570), (26, 794785), (41, 504010), (65, 317914), (82, 252005), (130, 158957), (205, 100802), (410, 50401), (533, 38770), (1066, 19385), (2665, 7754), (3877, 5330)]