18915400

素因数分解:

$2^3\times 5^2\times 7^1\times {\mathrm{59}}^1\times {\mathrm{229}}^1$

素因数の和:311

約数の個数: 96

約数和(自身を含む): 51336000

約数和(自身を除く): 32420600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 50, 56, 59, 70, 100, 118, 140, 175, 200, 229, 236, 280, 295, 350, 413, 458, 472, 590, 700, 826, 916, 1145, 1180, 1400, 1475, 1603, 1652, 1832, 2065, 2290, 2360, 2950, 3206, 3304, 4130, 4580, 5725, 5900, 6412, 8015, 8260, 9160, 10325, 11450, 11800, 12824, 13511, 16030, 16520, 20650, 22900, 27022, 32060, 40075, 41300, 45800, 54044, 64120, 67555, 80150, 82600, 94577, 108088, 135110, 160300, 189154, 270220, 320600, 337775, 378308, 472885, 540440, 675550, 756616, 945770, 1351100, 1891540, 2364425, 2702200, 3783080, 4728850, 9457700, 18915400]

約数ペア:

[(1, 18915400), (2, 9457700), (4, 4728850), (5, 3783080), (7, 2702200), (8, 2364425), (10, 1891540), (14, 1351100), (20, 945770), (25, 756616), (28, 675550), (35, 540440), (40, 472885), (50, 378308), (56, 337775), (59, 320600), (70, 270220), (100, 189154), (118, 160300), (140, 135110), (175, 108088), (200, 94577), (229, 82600), (236, 80150), (280, 67555), (295, 64120), (350, 54044), (413, 45800), (458, 41300), (472, 40075), (590, 32060), (700, 27022), (826, 22900), (916, 20650), (1145, 16520), (1180, 16030), (1400, 13511), (1475, 12824), (1603, 11800), (1652, 11450), (1832, 10325), (2065, 9160), (2290, 8260), (2360, 8015), (2950, 6412), (3206, 5900), (3304, 5725), (4130, 4580)]