278840394820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{8444591}}^1$

素因数の和:8444740

約数の個数: 48

約数和(自身を含む): 635573772288

約数和(自身を除く): 356733377468

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 127, 130, 254, 260, 508, 635, 1270, 1651, 2540, 3302, 6604, 8255, 16510, 33020, 8444591, 16889182, 33778364, 42222955, 84445910, 109779683, 168891820, 219559366, 439118732, 548898415, 1072463057, 1097796830, 2144926114, 2195593660, 4289852228, 5362315285, 10724630570, 13942019741, 21449261140, 27884039482, 55768078964, 69710098705, 139420197410, 278840394820]

約数ペア:

[(1, 278840394820), (2, 139420197410), (4, 69710098705), (5, 55768078964), (10, 27884039482), (13, 21449261140), (20, 13942019741), (26, 10724630570), (52, 5362315285), (65, 4289852228), (127, 2195593660), (130, 2144926114), (254, 1097796830), (260, 1072463057), (508, 548898415), (635, 439118732), (1270, 219559366), (1651, 168891820), (2540, 109779683), (3302, 84445910), (6604, 42222955), (8255, 33778364), (16510, 16889182), (33020, 8444591)]