19565534920

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{11375311}}^1$

素因数の和:11375365

約数の個数: 32

約数和(自身を含む): 45046235520

約数和(自身を除く): 25480700600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 11375311, 22750622, 45501244, 56876555, 91002488, 113753110, 227506220, 455012440, 489138373, 978276746, 1956553492, 2445691865, 3913106984, 4891383730, 9782767460, 19565534920]

約数ペア:

[(1, 19565534920), (2, 9782767460), (4, 4891383730), (5, 3913106984), (8, 2445691865), (10, 1956553492), (20, 978276746), (40, 489138373), (43, 455012440), (86, 227506220), (172, 113753110), (215, 91002488), (344, 56876555), (430, 45501244), (860, 22750622), (1720, 11375311)]