20202740

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{1187}}^1$

素因数の和:1256

約数の個数: 48

約数和(自身を含む): 45505152

約数和(自身を除く): 25302412

約数列:

[1, 2, 4, 5, 10, 20, 23, 37, 46, 74, 92, 115, 148, 185, 230, 370, 460, 740, 851, 1187, 1702, 2374, 3404, 4255, 4748, 5935, 8510, 11870, 17020, 23740, 27301, 43919, 54602, 87838, 109204, 136505, 175676, 219595, 273010, 439190, 546020, 878380, 1010137, 2020274, 4040548, 5050685, 10101370, 20202740]

約数ペア:

[(1, 20202740), (2, 10101370), (4, 5050685), (5, 4040548), (10, 2020274), (20, 1010137), (23, 878380), (37, 546020), (46, 439190), (74, 273010), (92, 219595), (115, 175676), (148, 136505), (185, 109204), (230, 87838), (370, 54602), (460, 43919), (740, 27301), (851, 23740), (1187, 17020), (1702, 11870), (2374, 8510), (3404, 5935), (4255, 4748)]