1087940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{409}}^1$

素因数の和:444

約数の個数: 48

約数和(自身を含む): 2755200

約数和(自身を除く): 1667260

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 266, 380, 409, 532, 665, 818, 1330, 1636, 2045, 2660, 2863, 4090, 5726, 7771, 8180, 11452, 14315, 15542, 28630, 31084, 38855, 54397, 57260, 77710, 108794, 155420, 217588, 271985, 543970, 1087940]

約数ペア:

[(1, 1087940), (2, 543970), (4, 271985), (5, 217588), (7, 155420), (10, 108794), (14, 77710), (19, 57260), (20, 54397), (28, 38855), (35, 31084), (38, 28630), (70, 15542), (76, 14315), (95, 11452), (133, 8180), (140, 7771), (190, 5726), (266, 4090), (380, 2863), (409, 2660), (532, 2045), (665, 1636), (818, 1330)]