28827260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{18719}}^1$

素因数の和:18746

約数の個数: 48

約数和(自身を含む): 75479040

約数和(自身を除く): 46651780

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 18719, 37438, 74876, 93595, 131033, 187190, 205909, 262066, 374380, 411818, 524132, 655165, 823636, 1029545, 1310330, 1441363, 2059090, 2620660, 2882726, 4118180, 5765452, 7206815, 14413630, 28827260]

約数ペア:

[(1, 28827260), (2, 14413630), (4, 7206815), (5, 5765452), (7, 4118180), (10, 2882726), (11, 2620660), (14, 2059090), (20, 1441363), (22, 1310330), (28, 1029545), (35, 823636), (44, 655165), (55, 524132), (70, 411818), (77, 374380), (110, 262066), (140, 205909), (154, 187190), (220, 131033), (308, 93595), (385, 74876), (770, 37438), (1540, 18719)]