20577456

素因数分解:

$2^4\times 3^3\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1$

素因数の和:168

約数の個数: 160

約数和(自身を含む): 65472000

約数和(自身を除く): 44894544

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 19, 23, 24, 27, 36, 38, 46, 48, 54, 57, 69, 72, 76, 92, 108, 109, 114, 138, 144, 152, 171, 184, 207, 216, 218, 228, 276, 304, 327, 342, 368, 414, 432, 436, 437, 456, 513, 552, 621, 654, 684, 828, 872, 874, 912, 981, 1026, 1104, 1242, 1308, 1311, 1368, 1656, 1744, 1748, 1962, 2052, 2071, 2484, 2507, 2616, 2622, 2736, 2943, 3312, 3496, 3924, 3933, 4104, 4142, 4968, 5014, 5232, 5244, 5886, 6213, 6992, 7521, 7848, 7866, 8208, 8284, 9936, 10028, 10488, 11772, 11799, 12426, 15042, 15696, 15732, 16568, 18639, 20056, 20976, 22563, 23544, 23598, 24852, 30084, 31464, 33136, 37278, 40112, 45126, 47088, 47196, 47633, 49704, 55917, 60168, 62928, 67689, 74556, 90252, 94392, 95266, 99408, 111834, 120336, 135378, 142899, 149112, 180504, 188784, 190532, 223668, 270756, 285798, 298224, 361008, 381064, 428697, 447336, 541512, 571596, 762128, 857394, 894672, 1083024, 1143192, 1286091, 1714788, 2286384, 2572182, 3429576, 5144364, 6859152, 10288728, 20577456]

約数ペア:

[(1, 20577456), (2, 10288728), (3, 6859152), (4, 5144364), (6, 3429576), (8, 2572182), (9, 2286384), (12, 1714788), (16, 1286091), (18, 1143192), (19, 1083024), (23, 894672), (24, 857394), (27, 762128), (36, 571596), (38, 541512), (46, 447336), (48, 428697), (54, 381064), (57, 361008), (69, 298224), (72, 285798), (76, 270756), (92, 223668), (108, 190532), (109, 188784), (114, 180504), (138, 149112), (144, 142899), (152, 135378), (171, 120336), (184, 111834), (207, 99408), (216, 95266), (218, 94392), (228, 90252), (276, 74556), (304, 67689), (327, 62928), (342, 60168), (368, 55917), (414, 49704), (432, 47633), (436, 47196), (437, 47088), (456, 45126), (513, 40112), (552, 37278), (621, 33136), (654, 31464), (684, 30084), (828, 24852), (872, 23598), (874, 23544), (912, 22563), (981, 20976), (1026, 20056), (1104, 18639), (1242, 16568), (1308, 15732), (1311, 15696), (1368, 15042), (1656, 12426), (1744, 11799), (1748, 11772), (1962, 10488), (2052, 10028), (2071, 9936), (2484, 8284), (2507, 8208), (2616, 7866), (2622, 7848), (2736, 7521), (2943, 6992), (3312, 6213), (3496, 5886), (3924, 5244), (3933, 5232), (4104, 5014), (4142, 4968)]