81030140

素因数分解:

$2^2\times 5^1\times {\mathrm{1321}}^1\times {\mathrm{3067}}^1$

素因数の和:4397

約数の個数: 24

約数和(自身を含む): 170347632

約数和(自身を除く): 89317492

約数列:

[1, 2, 4, 5, 10, 20, 1321, 2642, 3067, 5284, 6134, 6605, 12268, 13210, 15335, 26420, 30670, 61340, 4051507, 8103014, 16206028, 20257535, 40515070, 81030140]

約数ペア:

[(1, 81030140), (2, 40515070), (4, 20257535), (5, 16206028), (10, 8103014), (20, 4051507), (1321, 61340), (2642, 30670), (3067, 26420), (5284, 15335), (6134, 13210), (6605, 12268)]