81810420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{491}}^1\times {\mathrm{2777}}^1$

素因数の和:3280

約数の個数: 48

約数和(自身を含む): 229618368

約数和(自身を除く): 147807948

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 491, 982, 1473, 1964, 2455, 2777, 2946, 4910, 5554, 5892, 7365, 8331, 9820, 11108, 13885, 14730, 16662, 27770, 29460, 33324, 41655, 55540, 83310, 166620, 1363507, 2727014, 4090521, 5454028, 6817535, 8181042, 13635070, 16362084, 20452605, 27270140, 40905210, 81810420]

約数ペア:

[(1, 81810420), (2, 40905210), (3, 27270140), (4, 20452605), (5, 16362084), (6, 13635070), (10, 8181042), (12, 6817535), (15, 5454028), (20, 4090521), (30, 2727014), (60, 1363507), (491, 166620), (982, 83310), (1473, 55540), (1964, 41655), (2455, 33324), (2777, 29460), (2946, 27770), (4910, 16662), (5554, 14730), (5892, 13885), (7365, 11108), (8331, 9820)]