20294780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{3181}}^1$

素因数の和:3230

約数の個数: 48

約数和(自身を含む): 48111840

約数和(自身を除く): 27817060

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, 3181, 3190, 6362, 6380, 12724, 15905, 31810, 34991, 63620, 69982, 92249, 139964, 174955, 184498, 349910, 368996, 461245, 699820, 922490, 1014739, 1844980, 2029478, 4058956, 5073695, 10147390, 20294780]

約数ペア:

[(1, 20294780), (2, 10147390), (4, 5073695), (5, 4058956), (10, 2029478), (11, 1844980), (20, 1014739), (22, 922490), (29, 699820), (44, 461245), (55, 368996), (58, 349910), (110, 184498), (116, 174955), (145, 139964), (220, 92249), (290, 69982), (319, 63620), (580, 34991), (638, 31810), (1276, 15905), (1595, 12724), (3181, 6380), (3190, 6362)]