12778875040

素因数分解:

$2^5\times 5^1\times {\mathrm{661}}^1\times {\mathrm{120829}}^1$

素因数の和:121505

約数の個数: 48

約数和(自身を含む): 30236015880

約数和(自身を除く): 17457140840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 661, 1322, 2644, 3305, 5288, 6610, 10576, 13220, 21152, 26440, 52880, 105760, 120829, 241658, 483316, 604145, 966632, 1208290, 1933264, 2416580, 3866528, 4833160, 9666320, 19332640, 79867969, 159735938, 319471876, 399339845, 638943752, 798679690, 1277887504, 1597359380, 2555775008, 3194718760, 6389437520, 12778875040]

約数ペア:

[(1, 12778875040), (2, 6389437520), (4, 3194718760), (5, 2555775008), (8, 1597359380), (10, 1277887504), (16, 798679690), (20, 638943752), (32, 399339845), (40, 319471876), (80, 159735938), (160, 79867969), (661, 19332640), (1322, 9666320), (2644, 4833160), (3305, 3866528), (5288, 2416580), (6610, 1933264), (10576, 1208290), (13220, 966632), (21152, 604145), (26440, 483316), (52880, 241658), (105760, 120829)]