18880400

素因数分解:

$2^4\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{613}}^1$

素因数の和:649

約数の個数: 120

約数和(自身を含む): 56645184

約数和(自身を除く): 37764784

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 25, 28, 35, 40, 44, 50, 55, 56, 70, 77, 80, 88, 100, 110, 112, 140, 154, 175, 176, 200, 220, 275, 280, 308, 350, 385, 400, 440, 550, 560, 613, 616, 700, 770, 880, 1100, 1226, 1232, 1400, 1540, 1925, 2200, 2452, 2800, 3065, 3080, 3850, 4291, 4400, 4904, 6130, 6160, 6743, 7700, 8582, 9808, 12260, 13486, 15325, 15400, 17164, 21455, 24520, 26972, 30650, 30800, 33715, 34328, 42910, 47201, 49040, 53944, 61300, 67430, 68656, 85820, 94402, 107275, 107888, 122600, 134860, 168575, 171640, 188804, 214550, 236005, 245200, 269720, 337150, 343280, 377608, 429100, 472010, 539440, 674300, 755216, 858200, 944020, 1180025, 1348600, 1716400, 1888040, 2360050, 2697200, 3776080, 4720100, 9440200, 18880400]

約数ペア:

[(1, 18880400), (2, 9440200), (4, 4720100), (5, 3776080), (7, 2697200), (8, 2360050), (10, 1888040), (11, 1716400), (14, 1348600), (16, 1180025), (20, 944020), (22, 858200), (25, 755216), (28, 674300), (35, 539440), (40, 472010), (44, 429100), (50, 377608), (55, 343280), (56, 337150), (70, 269720), (77, 245200), (80, 236005), (88, 214550), (100, 188804), (110, 171640), (112, 168575), (140, 134860), (154, 122600), (175, 107888), (176, 107275), (200, 94402), (220, 85820), (275, 68656), (280, 67430), (308, 61300), (350, 53944), (385, 49040), (400, 47201), (440, 42910), (550, 34328), (560, 33715), (613, 30800), (616, 30650), (700, 26972), (770, 24520), (880, 21455), (1100, 17164), (1226, 15400), (1232, 15325), (1400, 13486), (1540, 12260), (1925, 9808), (2200, 8582), (2452, 7700), (2800, 6743), (3065, 6160), (3080, 6130), (3850, 4904), (4291, 4400)]