7961979640

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1279}}^1\times {\mathrm{8191}}^1$

素因数の和:9500

約数の個数: 64

約数和(自身を含む): 18874368000

約数和(自身を除く): 10912388360

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 1279, 2558, 5116, 6395, 8191, 10232, 12790, 16382, 24301, 25580, 32764, 40955, 48602, 51160, 65528, 81910, 97204, 121505, 155629, 163820, 194408, 243010, 311258, 327640, 486020, 622516, 778145, 972040, 1245032, 1556290, 3112580, 6225160, 10476289, 20952578, 41905156, 52381445, 83810312, 104762890, 199049491, 209525780, 398098982, 419051560, 796197964, 995247455, 1592395928, 1990494910, 3980989820, 7961979640]

約数ペア:

[(1, 7961979640), (2, 3980989820), (4, 1990494910), (5, 1592395928), (8, 995247455), (10, 796197964), (19, 419051560), (20, 398098982), (38, 209525780), (40, 199049491), (76, 104762890), (95, 83810312), (152, 52381445), (190, 41905156), (380, 20952578), (760, 10476289), (1279, 6225160), (2558, 3112580), (5116, 1556290), (6395, 1245032), (8191, 972040), (10232, 778145), (12790, 622516), (16382, 486020), (24301, 327640), (25580, 311258), (32764, 243010), (40955, 194408), (48602, 163820), (51160, 155629), (65528, 121505), (81910, 97204)]