128503688

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{661}}^1\times {\mathrm{1279}}^1$

素因数の和:1965

約数の個数: 32

約数和(自身を含む): 254208000

約数和(自身を除く): 125704312

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 661, 1279, 1322, 2558, 2644, 5116, 5288, 10232, 12559, 24301, 25118, 48602, 50236, 97204, 100472, 194408, 845419, 1690838, 3381676, 6763352, 16062961, 32125922, 64251844, 128503688]

約数ペア:

[(1, 128503688), (2, 64251844), (4, 32125922), (8, 16062961), (19, 6763352), (38, 3381676), (76, 1690838), (152, 845419), (661, 194408), (1279, 100472), (1322, 97204), (2558, 50236), (2644, 48602), (5116, 25118), (5288, 24301), (10232, 12559)]