90649580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{20887}}^1$

素因数の和:20934

約数の個数: 48

約数和(自身を含む): 224587776

約数和(自身を除く): 133938196

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 2170, 4340, 20887, 41774, 83548, 104435, 146209, 208870, 292418, 417740, 584836, 647497, 731045, 1294994, 1462090, 2589988, 2924180, 3237485, 4532479, 6474970, 9064958, 12949940, 18129916, 22662395, 45324790, 90649580]

約数ペア:

[(1, 90649580), (2, 45324790), (4, 22662395), (5, 18129916), (7, 12949940), (10, 9064958), (14, 6474970), (20, 4532479), (28, 3237485), (31, 2924180), (35, 2589988), (62, 1462090), (70, 1294994), (124, 731045), (140, 647497), (155, 584836), (217, 417740), (310, 292418), (434, 208870), (620, 146209), (868, 104435), (1085, 83548), (2170, 41774), (4340, 20887)]