81612056

素因数分解:

$2^3\times {\mathrm{79}}^1\times {\mathrm{263}}^1\times {\mathrm{491}}^1$

素因数の和:839

約数の個数: 32

約数和(自身を含む): 155865600

約数和(自身を除く): 74253544

約数列:

[1, 2, 4, 8, 79, 158, 263, 316, 491, 526, 632, 982, 1052, 1964, 2104, 3928, 20777, 38789, 41554, 77578, 83108, 129133, 155156, 166216, 258266, 310312, 516532, 1033064, 10201507, 20403014, 40806028, 81612056]

約数ペア:

[(1, 81612056), (2, 40806028), (4, 20403014), (8, 10201507), (79, 1033064), (158, 516532), (263, 310312), (316, 258266), (491, 166216), (526, 155156), (632, 129133), (982, 83108), (1052, 77578), (1964, 41554), (2104, 38789), (3928, 20777)]