85840520

素因数分解:

$2^3\times 5^1\times {\mathrm{1319}}^1\times {\mathrm{1627}}^1$

素因数の和:2957

約数の個数: 32

約数和(自身を含む): 193406400

約数和(自身を除く): 107565880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1319, 1627, 2638, 3254, 5276, 6508, 6595, 8135, 10552, 13016, 13190, 16270, 26380, 32540, 52760, 65080, 2146013, 4292026, 8584052, 10730065, 17168104, 21460130, 42920260, 85840520]

約数ペア:

[(1, 85840520), (2, 42920260), (4, 21460130), (5, 17168104), (8, 10730065), (10, 8584052), (20, 4292026), (40, 2146013), (1319, 65080), (1627, 52760), (2638, 32540), (3254, 26380), (5276, 16270), (6508, 13190), (6595, 13016), (8135, 10552)]