18212480

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1$

素因数の和:242

約数の個数: 128

約数和(自身を含む): 51408000

約数和(自身を除く): 33195520

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 32, 40, 44, 52, 55, 64, 65, 80, 88, 104, 110, 128, 130, 143, 160, 176, 199, 208, 220, 260, 286, 320, 352, 398, 416, 440, 520, 572, 640, 704, 715, 796, 832, 880, 995, 1040, 1144, 1408, 1430, 1592, 1664, 1760, 1990, 2080, 2189, 2288, 2587, 2860, 3184, 3520, 3980, 4160, 4378, 4576, 5174, 5720, 6368, 7040, 7960, 8320, 8756, 9152, 10348, 10945, 11440, 12736, 12935, 15920, 17512, 18304, 20696, 21890, 22880, 25472, 25870, 28457, 31840, 35024, 41392, 43780, 45760, 51740, 56914, 63680, 70048, 82784, 87560, 91520, 103480, 113828, 127360, 140096, 142285, 165568, 175120, 206960, 227656, 280192, 284570, 331136, 350240, 413920, 455312, 569140, 700480, 827840, 910624, 1138280, 1400960, 1655680, 1821248, 2276560, 3642496, 4553120, 9106240, 18212480]

約数ペア:

[(1, 18212480), (2, 9106240), (4, 4553120), (5, 3642496), (8, 2276560), (10, 1821248), (11, 1655680), (13, 1400960), (16, 1138280), (20, 910624), (22, 827840), (26, 700480), (32, 569140), (40, 455312), (44, 413920), (52, 350240), (55, 331136), (64, 284570), (65, 280192), (80, 227656), (88, 206960), (104, 175120), (110, 165568), (128, 142285), (130, 140096), (143, 127360), (160, 113828), (176, 103480), (199, 91520), (208, 87560), (220, 82784), (260, 70048), (286, 63680), (320, 56914), (352, 51740), (398, 45760), (416, 43780), (440, 41392), (520, 35024), (572, 31840), (640, 28457), (704, 25870), (715, 25472), (796, 22880), (832, 21890), (880, 20696), (995, 18304), (1040, 17512), (1144, 15920), (1408, 12935), (1430, 12736), (1592, 11440), (1664, 10945), (1760, 10348), (1990, 9152), (2080, 8756), (2189, 8320), (2288, 7960), (2587, 7040), (2860, 6368), (3184, 5720), (3520, 5174), (3980, 4576), (4160, 4378)]