28008680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{1493}}^1$

素因数の和:1578

約数の個数: 64

約数和(自身を含む): 73146240

約数和(自身を除く): 45137560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 67, 70, 134, 140, 268, 280, 335, 469, 536, 670, 938, 1340, 1493, 1876, 2345, 2680, 2986, 3752, 4690, 5972, 7465, 9380, 10451, 11944, 14930, 18760, 20902, 29860, 41804, 52255, 59720, 83608, 100031, 104510, 200062, 209020, 400124, 418040, 500155, 700217, 800248, 1000310, 1400434, 2000620, 2800868, 3501085, 4001240, 5601736, 7002170, 14004340, 28008680]

約数ペア:

[(1, 28008680), (2, 14004340), (4, 7002170), (5, 5601736), (7, 4001240), (8, 3501085), (10, 2800868), (14, 2000620), (20, 1400434), (28, 1000310), (35, 800248), (40, 700217), (56, 500155), (67, 418040), (70, 400124), (134, 209020), (140, 200062), (268, 104510), (280, 100031), (335, 83608), (469, 59720), (536, 52255), (670, 41804), (938, 29860), (1340, 20902), (1493, 18760), (1876, 14930), (2345, 11944), (2680, 10451), (2986, 9380), (3752, 7465), (4690, 5972)]