20664620

素因数分解:

$2^2\times 5^1\times {\mathrm{353}}^1\times {\mathrm{2927}}^1$

素因数の和:3289

約数の個数: 24

約数和(自身を含む): 43533504

約数和(自身を除く): 22868884

約数列:

[1, 2, 4, 5, 10, 20, 353, 706, 1412, 1765, 2927, 3530, 5854, 7060, 11708, 14635, 29270, 58540, 1033231, 2066462, 4132924, 5166155, 10332310, 20664620]

約数ペア:

[(1, 20664620), (2, 10332310), (4, 5166155), (5, 4132924), (10, 2066462), (20, 1033231), (353, 58540), (706, 29270), (1412, 14635), (1765, 11708), (2927, 7060), (3530, 5854)]