8420500

素因数分解:

$2^2\times 5^3\times {\mathrm{11}}^1\times {\mathrm{1531}}^1$

素因数の和:1561

約数の個数: 48

約数和(自身を含む): 20075328

約数和(自身を除く): 11654828

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 125, 220, 250, 275, 500, 550, 1100, 1375, 1531, 2750, 3062, 5500, 6124, 7655, 15310, 16841, 30620, 33682, 38275, 67364, 76550, 84205, 153100, 168410, 191375, 336820, 382750, 421025, 765500, 842050, 1684100, 2105125, 4210250, 8420500]

約数ペア:

[(1, 8420500), (2, 4210250), (4, 2105125), (5, 1684100), (10, 842050), (11, 765500), (20, 421025), (22, 382750), (25, 336820), (44, 191375), (50, 168410), (55, 153100), (100, 84205), (110, 76550), (125, 67364), (220, 38275), (250, 33682), (275, 30620), (500, 16841), (550, 15310), (1100, 7655), (1375, 6124), (1531, 5500), (2750, 3062)]