20019384

素因数分解:

$2^3\times 3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1$

素因数の和:210

約数の個数: 192

約数和(自身を含む): 70986240

約数和(自身を除く): 50966856

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 11, 12, 14, 18, 21, 22, 23, 24, 28, 33, 36, 42, 44, 46, 56, 63, 66, 69, 72, 77, 84, 88, 92, 99, 126, 132, 138, 154, 157, 161, 168, 184, 198, 207, 231, 252, 253, 264, 276, 308, 314, 322, 396, 414, 462, 471, 483, 504, 506, 552, 616, 628, 644, 693, 759, 792, 828, 924, 942, 966, 1012, 1099, 1256, 1288, 1386, 1413, 1449, 1518, 1656, 1727, 1771, 1848, 1884, 1932, 2024, 2198, 2277, 2772, 2826, 2898, 3036, 3297, 3454, 3542, 3611, 3768, 3864, 4396, 4554, 5181, 5313, 5544, 5652, 5796, 6072, 6594, 6908, 7084, 7222, 8792, 9108, 9891, 10362, 10626, 10833, 11304, 11592, 12089, 13188, 13816, 14168, 14444, 15543, 15939, 18216, 19782, 20724, 21252, 21666, 24178, 25277, 26376, 28888, 31086, 31878, 32499, 36267, 39564, 39721, 41448, 42504, 43332, 48356, 50554, 62172, 63756, 64998, 72534, 75831, 79128, 79442, 86664, 96712, 101108, 108801, 119163, 124344, 127512, 129996, 145068, 151662, 158884, 202216, 217602, 227493, 238326, 259992, 278047, 290136, 303324, 317768, 357489, 435204, 454986, 476652, 556094, 606648, 714978, 834141, 870408, 909972, 953304, 1112188, 1429956, 1668282, 1819944, 2224376, 2502423, 2859912, 3336564, 5004846, 6673128, 10009692, 20019384]

約数ペア:

[(1, 20019384), (2, 10009692), (3, 6673128), (4, 5004846), (6, 3336564), (7, 2859912), (8, 2502423), (9, 2224376), (11, 1819944), (12, 1668282), (14, 1429956), (18, 1112188), (21, 953304), (22, 909972), (23, 870408), (24, 834141), (28, 714978), (33, 606648), (36, 556094), (42, 476652), (44, 454986), (46, 435204), (56, 357489), (63, 317768), (66, 303324), (69, 290136), (72, 278047), (77, 259992), (84, 238326), (88, 227493), (92, 217602), (99, 202216), (126, 158884), (132, 151662), (138, 145068), (154, 129996), (157, 127512), (161, 124344), (168, 119163), (184, 108801), (198, 101108), (207, 96712), (231, 86664), (252, 79442), (253, 79128), (264, 75831), (276, 72534), (308, 64998), (314, 63756), (322, 62172), (396, 50554), (414, 48356), (462, 43332), (471, 42504), (483, 41448), (504, 39721), (506, 39564), (552, 36267), (616, 32499), (628, 31878), (644, 31086), (693, 28888), (759, 26376), (792, 25277), (828, 24178), (924, 21666), (942, 21252), (966, 20724), (1012, 19782), (1099, 18216), (1256, 15939), (1288, 15543), (1386, 14444), (1413, 14168), (1449, 13816), (1518, 13188), (1656, 12089), (1727, 11592), (1771, 11304), (1848, 10833), (1884, 10626), (1932, 10362), (2024, 9891), (2198, 9108), (2277, 8792), (2772, 7222), (2826, 7084), (2898, 6908), (3036, 6594), (3297, 6072), (3454, 5796), (3542, 5652), (3611, 5544), (3768, 5313), (3864, 5181), (4396, 4554)]