12571428

素因数分解:

$2^2\times 3^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1\times {\mathrm{149}}^1$

素因数の和:324

約数の個数: 48

約数和(自身を含む): 30240000

約数和(自身を除く): 17668572

約数列:

[1, 2, 3, 4, 6, 12, 79, 89, 149, 158, 178, 237, 267, 298, 316, 356, 447, 474, 534, 596, 894, 948, 1068, 1788, 7031, 11771, 13261, 14062, 21093, 23542, 26522, 28124, 35313, 39783, 42186, 47084, 53044, 70626, 79566, 84372, 141252, 159132, 1047619, 2095238, 3142857, 4190476, 6285714, 12571428]

約数ペア:

[(1, 12571428), (2, 6285714), (3, 4190476), (4, 3142857), (6, 2095238), (12, 1047619), (79, 159132), (89, 141252), (149, 84372), (158, 79566), (178, 70626), (237, 53044), (267, 47084), (298, 42186), (316, 39783), (356, 35313), (447, 28124), (474, 26522), (534, 23542), (596, 21093), (894, 14062), (948, 13261), (1068, 11771), (1788, 7031)]