42042020

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{123653}}^1$

素因数の和:123679

約数の個数: 24

約数和(自身を含む): 93482424

約数和(自身を除く): 51440404

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 123653, 247306, 494612, 618265, 1236530, 2102101, 2473060, 4204202, 8408404, 10510505, 21021010, 42042020]

約数ペア:

[(1, 42042020), (2, 21021010), (4, 10510505), (5, 8408404), (10, 4204202), (17, 2473060), (20, 2102101), (34, 1236530), (68, 618265), (85, 494612), (170, 247306), (340, 123653)]