12780490788

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{635087}}^1$

素因数の和:635153

約数の個数: 72

約数和(自身を含む): 35600492928

約数和(自身を除く): 22820002140

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 43, 52, 78, 86, 117, 129, 156, 172, 234, 258, 387, 468, 516, 559, 774, 1118, 1548, 1677, 2236, 3354, 5031, 6708, 10062, 20124, 635087, 1270174, 1905261, 2540348, 3810522, 5715783, 7621044, 8256131, 11431566, 16512262, 22863132, 24768393, 27308741, 33024524, 49536786, 54617482, 74305179, 81926223, 99073572, 109234964, 148610358, 163852446, 245778669, 297220716, 327704892, 355013633, 491557338, 710027266, 983114676, 1065040899, 1420054532, 2130081798, 3195122697, 4260163596, 6390245394, 12780490788]

約数ペア:

[(1, 12780490788), (2, 6390245394), (3, 4260163596), (4, 3195122697), (6, 2130081798), (9, 1420054532), (12, 1065040899), (13, 983114676), (18, 710027266), (26, 491557338), (36, 355013633), (39, 327704892), (43, 297220716), (52, 245778669), (78, 163852446), (86, 148610358), (117, 109234964), (129, 99073572), (156, 81926223), (172, 74305179), (234, 54617482), (258, 49536786), (387, 33024524), (468, 27308741), (516, 24768393), (559, 22863132), (774, 16512262), (1118, 11431566), (1548, 8256131), (1677, 7621044), (2236, 5715783), (3354, 3810522), (5031, 2540348), (6708, 1905261), (10062, 1270174), (20124, 635087)]