2921380

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{271}}^1$

素因数の和:305

約数の個数: 72

約数和(自身を含む): 7814016

約数和(自身を除く): 4892636

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 49, 55, 70, 77, 98, 110, 140, 154, 196, 220, 245, 271, 308, 385, 490, 539, 542, 770, 980, 1078, 1084, 1355, 1540, 1897, 2156, 2695, 2710, 2981, 3794, 5390, 5420, 5962, 7588, 9485, 10780, 11924, 13279, 14905, 18970, 20867, 26558, 29810, 37940, 41734, 53116, 59620, 66395, 83468, 104335, 132790, 146069, 208670, 265580, 292138, 417340, 584276, 730345, 1460690, 2921380]

約数ペア:

[(1, 2921380), (2, 1460690), (4, 730345), (5, 584276), (7, 417340), (10, 292138), (11, 265580), (14, 208670), (20, 146069), (22, 132790), (28, 104335), (35, 83468), (44, 66395), (49, 59620), (55, 53116), (70, 41734), (77, 37940), (98, 29810), (110, 26558), (140, 20867), (154, 18970), (196, 14905), (220, 13279), (245, 11924), (271, 10780), (308, 9485), (385, 7588), (490, 5962), (539, 5420), (542, 5390), (770, 3794), (980, 2981), (1078, 2710), (1084, 2695), (1355, 2156), (1540, 1897)]