221716660

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{12757}}^1$

素因数の和:12856

約数の個数: 48

約数和(自身を含む): 514402560

約数和(自身を除く): 292685900

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 79, 110, 158, 220, 316, 395, 790, 869, 1580, 1738, 3476, 4345, 8690, 12757, 17380, 25514, 51028, 63785, 127570, 140327, 255140, 280654, 561308, 701635, 1007803, 1403270, 2015606, 2806540, 4031212, 5039015, 10078030, 11085833, 20156060, 22171666, 44343332, 55429165, 110858330, 221716660]

約数ペア:

[(1, 221716660), (2, 110858330), (4, 55429165), (5, 44343332), (10, 22171666), (11, 20156060), (20, 11085833), (22, 10078030), (44, 5039015), (55, 4031212), (79, 2806540), (110, 2015606), (158, 1403270), (220, 1007803), (316, 701635), (395, 561308), (790, 280654), (869, 255140), (1580, 140327), (1738, 127570), (3476, 63785), (4345, 51028), (8690, 25514), (12757, 17380)]