20358580

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{3191}}^1$

素因数の和:3240

約数の個数: 48

約数和(自身を含む): 48263040

約数和(自身を除く): 27904460

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 29, 44, 55, 58, 110, 116, 145, 220, 290, 319, 580, 638, 1276, 1595, 3190, 3191, 6380, 6382, 12764, 15955, 31910, 35101, 63820, 70202, 92539, 140404, 175505, 185078, 351010, 370156, 462695, 702020, 925390, 1017929, 1850780, 2035858, 4071716, 5089645, 10179290, 20358580]

約数ペア:

[(1, 20358580), (2, 10179290), (4, 5089645), (5, 4071716), (10, 2035858), (11, 1850780), (20, 1017929), (22, 925390), (29, 702020), (44, 462695), (55, 370156), (58, 351010), (110, 185078), (116, 175505), (145, 140404), (220, 92539), (290, 70202), (319, 63820), (580, 35101), (638, 31910), (1276, 15955), (1595, 12764), (3190, 6382), (3191, 6380)]