18181440

素因数分解:

$2^6\times 3^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{107}}^1$

素因数の和:189

約数の個数: 168

約数和(自身を含む): 64190880

約数和(自身を除く): 46009440

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 59, 60, 64, 72, 80, 90, 96, 107, 118, 120, 144, 160, 177, 180, 192, 214, 236, 240, 288, 295, 320, 321, 354, 360, 428, 472, 480, 531, 535, 576, 590, 642, 708, 720, 856, 885, 944, 960, 963, 1062, 1070, 1180, 1284, 1416, 1440, 1605, 1712, 1770, 1888, 1926, 2124, 2140, 2360, 2568, 2655, 2832, 2880, 3210, 3424, 3540, 3776, 3852, 4248, 4280, 4720, 4815, 5136, 5310, 5664, 6313, 6420, 6848, 7080, 7704, 8496, 8560, 9440, 9630, 10272, 10620, 11328, 12626, 12840, 14160, 15408, 16992, 17120, 18880, 18939, 19260, 20544, 21240, 25252, 25680, 28320, 30816, 31565, 33984, 34240, 37878, 38520, 42480, 50504, 51360, 56640, 56817, 61632, 63130, 75756, 77040, 84960, 94695, 101008, 102720, 113634, 126260, 151512, 154080, 169920, 189390, 202016, 227268, 252520, 284085, 303024, 308160, 378780, 404032, 454536, 505040, 568170, 606048, 757560, 909072, 1010080, 1136340, 1212096, 1515120, 1818144, 2020160, 2272680, 3030240, 3636288, 4545360, 6060480, 9090720, 18181440]

約数ペア:

[(1, 18181440), (2, 9090720), (3, 6060480), (4, 4545360), (5, 3636288), (6, 3030240), (8, 2272680), (9, 2020160), (10, 1818144), (12, 1515120), (15, 1212096), (16, 1136340), (18, 1010080), (20, 909072), (24, 757560), (30, 606048), (32, 568170), (36, 505040), (40, 454536), (45, 404032), (48, 378780), (59, 308160), (60, 303024), (64, 284085), (72, 252520), (80, 227268), (90, 202016), (96, 189390), (107, 169920), (118, 154080), (120, 151512), (144, 126260), (160, 113634), (177, 102720), (180, 101008), (192, 94695), (214, 84960), (236, 77040), (240, 75756), (288, 63130), (295, 61632), (320, 56817), (321, 56640), (354, 51360), (360, 50504), (428, 42480), (472, 38520), (480, 37878), (531, 34240), (535, 33984), (576, 31565), (590, 30816), (642, 28320), (708, 25680), (720, 25252), (856, 21240), (885, 20544), (944, 19260), (960, 18939), (963, 18880), (1062, 17120), (1070, 16992), (1180, 15408), (1284, 14160), (1416, 12840), (1440, 12626), (1605, 11328), (1712, 10620), (1770, 10272), (1888, 9630), (1926, 9440), (2124, 8560), (2140, 8496), (2360, 7704), (2568, 7080), (2655, 6848), (2832, 6420), (2880, 6313), (3210, 5664), (3424, 5310), (3540, 5136), (3776, 4815), (3852, 4720), (4248, 4280)]