20120656540

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{419}}^1\times {\mathrm{23311}}^1$

素因数の和:23842

約数の個数: 48

約数和(自身を含む): 42767262720

約数和(自身を除く): 22646606180

約数列:

[1, 2, 4, 5, 10, 20, 103, 206, 412, 419, 515, 838, 1030, 1676, 2060, 2095, 4190, 8380, 23311, 43157, 46622, 86314, 93244, 116555, 172628, 215785, 233110, 431570, 466220, 863140, 2401033, 4802066, 9604132, 9767309, 12005165, 19534618, 24010330, 39069236, 48020660, 48836545, 97673090, 195346180, 1006032827, 2012065654, 4024131308, 5030164135, 10060328270, 20120656540]

約数ペア:

[(1, 20120656540), (2, 10060328270), (4, 5030164135), (5, 4024131308), (10, 2012065654), (20, 1006032827), (103, 195346180), (206, 97673090), (412, 48836545), (419, 48020660), (515, 39069236), (838, 24010330), (1030, 19534618), (1676, 12005165), (2060, 9767309), (2095, 9604132), (4190, 4802066), (8380, 2401033), (23311, 863140), (43157, 466220), (46622, 431570), (86314, 233110), (93244, 215785), (116555, 172628)]