81225740

素因数分解:

$2^2\times 5^1\times {\mathrm{541}}^1\times {\mathrm{7507}}^1$

素因数の和:8057

約数の個数: 24

約数和(自身を含む): 170912112

約数和(自身を除く): 89686372

約数列:

[1, 2, 4, 5, 10, 20, 541, 1082, 2164, 2705, 5410, 7507, 10820, 15014, 30028, 37535, 75070, 150140, 4061287, 8122574, 16245148, 20306435, 40612870, 81225740]

約数ペア:

[(1, 81225740), (2, 40612870), (4, 20306435), (5, 16245148), (10, 8122574), (20, 4061287), (541, 150140), (1082, 75070), (2164, 37535), (2705, 30028), (5410, 15014), (7507, 10820)]