20690568

素因数分解:

$2^3\times 3^2\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{163}}^1$

素因数の和:259

約数の個数: 96

約数和(自身を含む): 59099040

約数和(自身を除く): 38408472

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 41, 43, 72, 82, 86, 123, 129, 163, 164, 172, 246, 258, 326, 328, 344, 369, 387, 489, 492, 516, 652, 738, 774, 978, 984, 1032, 1304, 1467, 1476, 1548, 1763, 1956, 2934, 2952, 3096, 3526, 3912, 5289, 5868, 6683, 7009, 7052, 10578, 11736, 13366, 14018, 14104, 15867, 20049, 21027, 21156, 26732, 28036, 31734, 40098, 42054, 42312, 53464, 56072, 60147, 63081, 63468, 80196, 84108, 120294, 126162, 126936, 160392, 168216, 240588, 252324, 287369, 481176, 504648, 574738, 862107, 1149476, 1724214, 2298952, 2586321, 3448428, 5172642, 6896856, 10345284, 20690568]

約数ペア:

[(1, 20690568), (2, 10345284), (3, 6896856), (4, 5172642), (6, 3448428), (8, 2586321), (9, 2298952), (12, 1724214), (18, 1149476), (24, 862107), (36, 574738), (41, 504648), (43, 481176), (72, 287369), (82, 252324), (86, 240588), (123, 168216), (129, 160392), (163, 126936), (164, 126162), (172, 120294), (246, 84108), (258, 80196), (326, 63468), (328, 63081), (344, 60147), (369, 56072), (387, 53464), (489, 42312), (492, 42054), (516, 40098), (652, 31734), (738, 28036), (774, 26732), (978, 21156), (984, 21027), (1032, 20049), (1304, 15867), (1467, 14104), (1476, 14018), (1548, 13366), (1763, 11736), (1956, 10578), (2934, 7052), (2952, 7009), (3096, 6683), (3526, 5868), (3912, 5289)]