221571640

素因数分解:

$2^3\times 5^1\times {\mathrm{2309}}^1\times {\mathrm{2399}}^1$

素因数の和:4719

約数の個数: 32

約数和(自身を含む): 498960000

約数和(自身を除く): 277388360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2309, 2399, 4618, 4798, 9236, 9596, 11545, 11995, 18472, 19192, 23090, 23990, 46180, 47980, 92360, 95960, 5539291, 11078582, 22157164, 27696455, 44314328, 55392910, 110785820, 221571640]

約数ペア:

[(1, 221571640), (2, 110785820), (4, 55392910), (5, 44314328), (8, 27696455), (10, 22157164), (20, 11078582), (40, 5539291), (2309, 95960), (2399, 92360), (4618, 47980), (4798, 46180), (9236, 23990), (9596, 23090), (11545, 19192), (11995, 18472)]