20790408

素因数分解:

$2^3\times 3^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{359}}^1$

素因数の和:514

約数の個数: 64

約数和(自身を含む): 55296000

約数和(自身を除く): 34505592

約数列:

[1, 2, 3, 4, 6, 8, 12, 19, 24, 38, 57, 76, 114, 127, 152, 228, 254, 359, 381, 456, 508, 718, 762, 1016, 1077, 1436, 1524, 2154, 2413, 2872, 3048, 4308, 4826, 6821, 7239, 8616, 9652, 13642, 14478, 19304, 20463, 27284, 28956, 40926, 45593, 54568, 57912, 81852, 91186, 136779, 163704, 182372, 273558, 364744, 547116, 866267, 1094232, 1732534, 2598801, 3465068, 5197602, 6930136, 10395204, 20790408]

約数ペア:

[(1, 20790408), (2, 10395204), (3, 6930136), (4, 5197602), (6, 3465068), (8, 2598801), (12, 1732534), (19, 1094232), (24, 866267), (38, 547116), (57, 364744), (76, 273558), (114, 182372), (127, 163704), (152, 136779), (228, 91186), (254, 81852), (359, 57912), (381, 54568), (456, 45593), (508, 40926), (718, 28956), (762, 27284), (1016, 20463), (1077, 19304), (1436, 14478), (1524, 13642), (2154, 9652), (2413, 8616), (2872, 7239), (3048, 6821), (4308, 4826)]