64920860

素因数分解:

$2^2\times 5^1\times {\mathrm{1109}}^1\times {\mathrm{2927}}^1$

素因数の和:4045

約数の個数: 24

約数和(自身を含む): 136503360

約数和(自身を除く): 71582500

約数列:

[1, 2, 4, 5, 10, 20, 1109, 2218, 2927, 4436, 5545, 5854, 11090, 11708, 14635, 22180, 29270, 58540, 3246043, 6492086, 12984172, 16230215, 32460430, 64920860]

約数ペア:

[(1, 64920860), (2, 32460430), (4, 16230215), (5, 12984172), (10, 6492086), (20, 3246043), (1109, 58540), (2218, 29270), (2927, 22180), (4436, 14635), (5545, 11708), (5854, 11090)]