18945430

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{3041}}^1$

素因数の和:3144

約数の個数: 32

約数和(自身を含む): 39424320

約数和(自身を除く): 20478890

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 89, 178, 445, 623, 890, 1246, 3041, 3115, 6082, 6230, 15205, 21287, 30410, 42574, 106435, 212870, 270649, 541298, 1353245, 1894543, 2706490, 3789086, 9472715, 18945430]

約数ペア:

[(1, 18945430), (2, 9472715), (5, 3789086), (7, 2706490), (10, 1894543), (14, 1353245), (35, 541298), (70, 270649), (89, 212870), (178, 106435), (445, 42574), (623, 30410), (890, 21287), (1246, 15205), (3041, 6230), (3115, 6082)]