2800820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{439}}^1$

素因数の和:488

約数の個数: 48

約数和(自身を含む): 6652800

約数和(自身を除く): 3851980

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 29, 44, 55, 58, 110, 116, 145, 220, 290, 319, 439, 580, 638, 878, 1276, 1595, 1756, 2195, 3190, 4390, 4829, 6380, 8780, 9658, 12731, 19316, 24145, 25462, 48290, 50924, 63655, 96580, 127310, 140041, 254620, 280082, 560164, 700205, 1400410, 2800820]

約数ペア:

[(1, 2800820), (2, 1400410), (4, 700205), (5, 560164), (10, 280082), (11, 254620), (20, 140041), (22, 127310), (29, 96580), (44, 63655), (55, 50924), (58, 48290), (110, 25462), (116, 24145), (145, 19316), (220, 12731), (290, 9658), (319, 8780), (439, 6380), (580, 4829), (638, 4390), (878, 3190), (1276, 2195), (1595, 1756)]