20176895870

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{461}}^1\times {\mathrm{4079}}^1$

素因数の和:4613

約数の個数: 64

約数和(自身を含む): 38679379200

約数和(自身を除く): 18502483330

約数列:

[1, 2, 5, 10, 29, 37, 58, 74, 145, 185, 290, 370, 461, 922, 1073, 2146, 2305, 4079, 4610, 5365, 8158, 10730, 13369, 17057, 20395, 26738, 34114, 40790, 66845, 85285, 118291, 133690, 150923, 170570, 236582, 301846, 494653, 591455, 754615, 989306, 1182910, 1509230, 1880419, 2473265, 3760838, 4376767, 4946530, 8753534, 9402095, 18804190, 21883835, 43767670, 54532151, 69575503, 109064302, 139151006, 272660755, 347877515, 545321510, 695755030, 2017689587, 4035379174, 10088447935, 20176895870]

約数ペア:

[(1, 20176895870), (2, 10088447935), (5, 4035379174), (10, 2017689587), (29, 695755030), (37, 545321510), (58, 347877515), (74, 272660755), (145, 139151006), (185, 109064302), (290, 69575503), (370, 54532151), (461, 43767670), (922, 21883835), (1073, 18804190), (2146, 9402095), (2305, 8753534), (4079, 4946530), (4610, 4376767), (5365, 3760838), (8158, 2473265), (10730, 1880419), (13369, 1509230), (17057, 1182910), (20395, 989306), (26738, 754615), (34114, 591455), (40790, 494653), (66845, 301846), (85285, 236582), (118291, 170570), (133690, 150923)]