12811760

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{127}}^1$

素因数の和:250

約数の個数: 80

約数和(自身を含む): 32664576

約数和(自身を除く): 19852816

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 97, 104, 127, 130, 194, 208, 254, 260, 388, 485, 508, 520, 635, 776, 970, 1016, 1040, 1261, 1270, 1552, 1651, 1940, 2032, 2522, 2540, 3302, 3880, 5044, 5080, 6305, 6604, 7760, 8255, 10088, 10160, 12319, 12610, 13208, 16510, 20176, 24638, 25220, 26416, 33020, 49276, 50440, 61595, 66040, 98552, 100880, 123190, 132080, 160147, 197104, 246380, 320294, 492760, 640588, 800735, 985520, 1281176, 1601470, 2562352, 3202940, 6405880, 12811760]

約数ペア:

[(1, 12811760), (2, 6405880), (4, 3202940), (5, 2562352), (8, 1601470), (10, 1281176), (13, 985520), (16, 800735), (20, 640588), (26, 492760), (40, 320294), (52, 246380), (65, 197104), (80, 160147), (97, 132080), (104, 123190), (127, 100880), (130, 98552), (194, 66040), (208, 61595), (254, 50440), (260, 49276), (388, 33020), (485, 26416), (508, 25220), (520, 24638), (635, 20176), (776, 16510), (970, 13208), (1016, 12610), (1040, 12319), (1261, 10160), (1270, 10088), (1552, 8255), (1651, 7760), (1940, 6604), (2032, 6305), (2522, 5080), (2540, 5044), (3302, 3880)]