211232620

素因数分解:

$2^2\times 5^1\times {\mathrm{1949}}^1\times {\mathrm{5419}}^1$

素因数の和:7377

約数の個数: 24

約数和(自身を含む): 443898000

約数和(自身を除く): 232665380

約数列:

[1, 2, 4, 5, 10, 20, 1949, 3898, 5419, 7796, 9745, 10838, 19490, 21676, 27095, 38980, 54190, 108380, 10561631, 21123262, 42246524, 52808155, 105616310, 211232620]

約数ペア:

[(1, 211232620), (2, 105616310), (4, 52808155), (5, 42246524), (10, 21123262), (20, 10561631), (1949, 108380), (3898, 54190), (5419, 38980), (7796, 27095), (9745, 21676), (10838, 19490)]