20562740

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{293}}^1$

素因数の和:353

約数の個数: 72

約数和(自身を含む): 49268520

約数和(自身を除く): 28705780

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 29, 44, 55, 58, 110, 116, 121, 145, 220, 242, 290, 293, 319, 484, 580, 586, 605, 638, 1172, 1210, 1276, 1465, 1595, 2420, 2930, 3190, 3223, 3509, 5860, 6380, 6446, 7018, 8497, 12892, 14036, 16115, 16994, 17545, 32230, 33988, 35090, 35453, 42485, 64460, 70180, 70906, 84970, 93467, 141812, 169940, 177265, 186934, 354530, 373868, 467335, 709060, 934670, 1028137, 1869340, 2056274, 4112548, 5140685, 10281370, 20562740]

約数ペア:

[(1, 20562740), (2, 10281370), (4, 5140685), (5, 4112548), (10, 2056274), (11, 1869340), (20, 1028137), (22, 934670), (29, 709060), (44, 467335), (55, 373868), (58, 354530), (110, 186934), (116, 177265), (121, 169940), (145, 141812), (220, 93467), (242, 84970), (290, 70906), (293, 70180), (319, 64460), (484, 42485), (580, 35453), (586, 35090), (605, 33988), (638, 32230), (1172, 17545), (1210, 16994), (1276, 16115), (1465, 14036), (1595, 12892), (2420, 8497), (2930, 7018), (3190, 6446), (3223, 6380), (3509, 5860)]