54540280

素因数分解:

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

素因数の和:3279

約数の個数: 32

約数和(自身を含む): 123009840

約数和(自身を除く): 68469560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 491, 982, 1964, 2455, 2777, 3928, 4910, 5554, 9820, 11108, 13885, 19640, 22216, 27770, 55540, 111080, 1363507, 2727014, 5454028, 6817535, 10908056, 13635070, 27270140, 54540280]

約数ペア:

[(1, 54540280), (2, 27270140), (4, 13635070), (5, 10908056), (8, 6817535), (10, 5454028), (20, 2727014), (40, 1363507), (491, 111080), (982, 55540), (1964, 27770), (2455, 22216), (2777, 19640), (3928, 13885), (4910, 11108), (5554, 9820)]