1989960

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{103}}^1$

素因数の和:147

約数の個数: 128

約数和(自身を含む): 7188480

約数和(自身を除く): 5198520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 23, 24, 28, 30, 35, 40, 42, 46, 56, 60, 69, 70, 84, 92, 103, 105, 115, 120, 138, 140, 161, 168, 184, 206, 210, 230, 276, 280, 309, 322, 345, 412, 420, 460, 483, 515, 552, 618, 644, 690, 721, 805, 824, 840, 920, 966, 1030, 1236, 1288, 1380, 1442, 1545, 1610, 1932, 2060, 2163, 2369, 2415, 2472, 2760, 2884, 3090, 3220, 3605, 3864, 4120, 4326, 4738, 4830, 5768, 6180, 6440, 7107, 7210, 8652, 9476, 9660, 10815, 11845, 12360, 14214, 14420, 16583, 17304, 18952, 19320, 21630, 23690, 28428, 28840, 33166, 35535, 43260, 47380, 49749, 56856, 66332, 71070, 82915, 86520, 94760, 99498, 132664, 142140, 165830, 198996, 248745, 284280, 331660, 397992, 497490, 663320, 994980, 1989960]

約数ペア:

[(1, 1989960), (2, 994980), (3, 663320), (4, 497490), (5, 397992), (6, 331660), (7, 284280), (8, 248745), (10, 198996), (12, 165830), (14, 142140), (15, 132664), (20, 99498), (21, 94760), (23, 86520), (24, 82915), (28, 71070), (30, 66332), (35, 56856), (40, 49749), (42, 47380), (46, 43260), (56, 35535), (60, 33166), (69, 28840), (70, 28428), (84, 23690), (92, 21630), (103, 19320), (105, 18952), (115, 17304), (120, 16583), (138, 14420), (140, 14214), (161, 12360), (168, 11845), (184, 10815), (206, 9660), (210, 9476), (230, 8652), (276, 7210), (280, 7107), (309, 6440), (322, 6180), (345, 5768), (412, 4830), (420, 4738), (460, 4326), (483, 4120), (515, 3864), (552, 3605), (618, 3220), (644, 3090), (690, 2884), (721, 2760), (805, 2472), (824, 2415), (840, 2369), (920, 2163), (966, 2060), (1030, 1932), (1236, 1610), (1288, 1545), (1380, 1442)]