81277255

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{503}}^1\times {\mathrm{1901}}^1$

素因数の和:2426

約数の個数: 16

約数和(自身を含む): 103529664

約数和(自身を除く): 22252409

約数列:

[1, 5, 17, 85, 503, 1901, 2515, 8551, 9505, 32317, 42755, 161585, 956203, 4781015, 16255451, 81277255]

約数ペア:

[(1, 81277255), (5, 16255451), (17, 4781015), (85, 956203), (503, 161585), (1901, 42755), (2515, 32317), (8551, 9505)]