21865400

素因数分解:

$2^3\times 5^2\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{109}}^1$

素因数の和:201

約数の個数: 96

約数和(自身を含む): 55242000

約数和(自身を除く): 33376600

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 25, 34, 40, 50, 59, 68, 85, 100, 109, 118, 136, 170, 200, 218, 236, 295, 340, 425, 436, 472, 545, 590, 680, 850, 872, 1003, 1090, 1180, 1475, 1700, 1853, 2006, 2180, 2360, 2725, 2950, 3400, 3706, 4012, 4360, 5015, 5450, 5900, 6431, 7412, 8024, 9265, 10030, 10900, 11800, 12862, 14824, 18530, 20060, 21800, 25075, 25724, 32155, 37060, 40120, 46325, 50150, 51448, 64310, 74120, 92650, 100300, 109327, 128620, 160775, 185300, 200600, 218654, 257240, 321550, 370600, 437308, 546635, 643100, 874616, 1093270, 1286200, 2186540, 2733175, 4373080, 5466350, 10932700, 21865400]

約数ペア:

[(1, 21865400), (2, 10932700), (4, 5466350), (5, 4373080), (8, 2733175), (10, 2186540), (17, 1286200), (20, 1093270), (25, 874616), (34, 643100), (40, 546635), (50, 437308), (59, 370600), (68, 321550), (85, 257240), (100, 218654), (109, 200600), (118, 185300), (136, 160775), (170, 128620), (200, 109327), (218, 100300), (236, 92650), (295, 74120), (340, 64310), (425, 51448), (436, 50150), (472, 46325), (545, 40120), (590, 37060), (680, 32155), (850, 25724), (872, 25075), (1003, 21800), (1090, 20060), (1180, 18530), (1475, 14824), (1700, 12862), (1853, 11800), (2006, 10900), (2180, 10030), (2360, 9265), (2725, 8024), (2950, 7412), (3400, 6431), (3706, 5900), (4012, 5450), (4360, 5015)]