2019947020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1109861}}^1$

素因数の和:1109890

約数の個数: 48

約数和(自身を含む): 5220790848

約数和(自身を除く): 3200843828

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 1109861, 2219722, 4439444, 5549305, 7769027, 11098610, 14428193, 15538054, 22197220, 28856386, 31076108, 38845135, 57712772, 72140965, 77690270, 100997351, 144281930, 155380540, 201994702, 288563860, 403989404, 504986755, 1009973510, 2019947020]

約数ペア:

[(1, 2019947020), (2, 1009973510), (4, 504986755), (5, 403989404), (7, 288563860), (10, 201994702), (13, 155380540), (14, 144281930), (20, 100997351), (26, 77690270), (28, 72140965), (35, 57712772), (52, 38845135), (65, 31076108), (70, 28856386), (91, 22197220), (130, 15538054), (140, 14428193), (182, 11098610), (260, 7769027), (364, 5549305), (455, 4439444), (910, 2219722), (1820, 1109861)]