1295420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{487}}^1$

素因数の和:522

約数の個数: 48

約数和(自身を含む): 3279360

約数和(自身を除く): 1983940

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 266, 380, 487, 532, 665, 974, 1330, 1948, 2435, 2660, 3409, 4870, 6818, 9253, 9740, 13636, 17045, 18506, 34090, 37012, 46265, 64771, 68180, 92530, 129542, 185060, 259084, 323855, 647710, 1295420]

約数ペア:

[(1, 1295420), (2, 647710), (4, 323855), (5, 259084), (7, 185060), (10, 129542), (14, 92530), (19, 68180), (20, 64771), (28, 46265), (35, 37012), (38, 34090), (70, 18506), (76, 17045), (95, 13636), (133, 9740), (140, 9253), (190, 6818), (266, 4870), (380, 3409), (487, 2660), (532, 2435), (665, 1948), (974, 1330)]