2008488979

素因数分解:

$7^3\times {\mathrm{103}}^1\times {\mathrm{139}}^1\times {\mathrm{409}}^1$

素因数の和:672

約数の個数: 32

約数和(自身を含む): 2387840000

約数和(自身を除く): 379351021

約数列:

[1, 7, 49, 103, 139, 343, 409, 721, 973, 2863, 5047, 6811, 14317, 20041, 35329, 42127, 47677, 56851, 100219, 140287, 294889, 397957, 701533, 2064223, 2785699, 4910731, 5855653, 14449561, 19499893, 40989571, 286926997, 2008488979]

約数ペア:

[(1, 2008488979), (7, 286926997), (49, 40989571), (103, 19499893), (139, 14449561), (343, 5855653), (409, 4910731), (721, 2785699), (973, 2064223), (2863, 701533), (5047, 397957), (6811, 294889), (14317, 140287), (20041, 100219), (35329, 56851), (42127, 47677)]