1218580

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{191}}^1$

素因数の和:240

約数の個数: 48

約数和(自身を含む): 2903040

約数和(自身を除く): 1684460

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 29, 44, 55, 58, 110, 116, 145, 191, 220, 290, 319, 382, 580, 638, 764, 955, 1276, 1595, 1910, 2101, 3190, 3820, 4202, 5539, 6380, 8404, 10505, 11078, 21010, 22156, 27695, 42020, 55390, 60929, 110780, 121858, 243716, 304645, 609290, 1218580]

約数ペア:

[(1, 1218580), (2, 609290), (4, 304645), (5, 243716), (10, 121858), (11, 110780), (20, 60929), (22, 55390), (29, 42020), (44, 27695), (55, 22156), (58, 21010), (110, 11078), (116, 10505), (145, 8404), (191, 6380), (220, 5539), (290, 4202), (319, 3820), (382, 3190), (580, 2101), (638, 1910), (764, 1595), (955, 1276)]