1290213756

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{647}}^1\times {\mathrm{4261}}^1$

素因数の和:4931

約数の個数: 72

約数和(自身を含む): 3518502624

約数和(自身を除く): 2228288868

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 234, 468, 647, 1294, 1941, 2588, 3882, 4261, 5823, 7764, 8411, 8522, 11646, 12783, 16822, 17044, 23292, 25233, 25566, 33644, 38349, 50466, 51132, 55393, 75699, 76698, 100932, 110786, 151398, 153396, 166179, 221572, 302796, 332358, 498537, 664716, 997074, 1994148, 2756867, 5513734, 8270601, 11027468, 16541202, 24811803, 33082404, 35839271, 49623606, 71678542, 99247212, 107517813, 143357084, 215035626, 322553439, 430071252, 645106878, 1290213756]

約数ペア:

[(1, 1290213756), (2, 645106878), (3, 430071252), (4, 322553439), (6, 215035626), (9, 143357084), (12, 107517813), (13, 99247212), (18, 71678542), (26, 49623606), (36, 35839271), (39, 33082404), (52, 24811803), (78, 16541202), (117, 11027468), (156, 8270601), (234, 5513734), (468, 2756867), (647, 1994148), (1294, 997074), (1941, 664716), (2588, 498537), (3882, 332358), (4261, 302796), (5823, 221572), (7764, 166179), (8411, 153396), (8522, 151398), (11646, 110786), (12783, 100932), (16822, 76698), (17044, 75699), (23292, 55393), (25233, 51132), (25566, 50466), (33644, 38349)]