17982720

素因数分解:

$2^8\times 3^2\times 5^1\times 7^1\times {\mathrm{223}}^1$

素因数の和:257

約数の個数: 216

約数和(自身を含む): 71425536

約数和(自身を除く): 53442816

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 64, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 128, 140, 144, 160, 168, 180, 192, 210, 223, 224, 240, 252, 256, 280, 288, 315, 320, 336, 360, 384, 420, 446, 448, 480, 504, 560, 576, 630, 640, 669, 672, 720, 768, 840, 892, 896, 960, 1008, 1115, 1120, 1152, 1260, 1280, 1338, 1344, 1440, 1561, 1680, 1784, 1792, 1920, 2007, 2016, 2230, 2240, 2304, 2520, 2676, 2688, 2880, 3122, 3345, 3360, 3568, 3840, 4014, 4032, 4460, 4480, 4683, 5040, 5352, 5376, 5760, 6244, 6690, 6720, 7136, 7805, 8028, 8064, 8920, 8960, 9366, 10035, 10080, 10704, 11520, 12488, 13380, 13440, 14049, 14272, 15610, 16056, 16128, 17840, 18732, 20070, 20160, 21408, 23415, 24976, 26760, 26880, 28098, 28544, 31220, 32112, 35680, 37464, 40140, 40320, 42816, 46830, 49952, 53520, 56196, 57088, 62440, 64224, 70245, 71360, 74928, 80280, 80640, 85632, 93660, 99904, 107040, 112392, 124880, 128448, 140490, 142720, 149856, 160560, 171264, 187320, 199808, 214080, 224784, 249760, 256896, 280980, 285440, 299712, 321120, 374640, 399616, 428160, 449568, 499520, 513792, 561960, 599424, 642240, 749280, 856320, 899136, 999040, 1123920, 1198848, 1284480, 1498560, 1798272, 1998080, 2247840, 2568960, 2997120, 3596544, 4495680, 5994240, 8991360, 17982720]

約数ペア:

[(1, 17982720), (2, 8991360), (3, 5994240), (4, 4495680), (5, 3596544), (6, 2997120), (7, 2568960), (8, 2247840), (9, 1998080), (10, 1798272), (12, 1498560), (14, 1284480), (15, 1198848), (16, 1123920), (18, 999040), (20, 899136), (21, 856320), (24, 749280), (28, 642240), (30, 599424), (32, 561960), (35, 513792), (36, 499520), (40, 449568), (42, 428160), (45, 399616), (48, 374640), (56, 321120), (60, 299712), (63, 285440), (64, 280980), (70, 256896), (72, 249760), (80, 224784), (84, 214080), (90, 199808), (96, 187320), (105, 171264), (112, 160560), (120, 149856), (126, 142720), (128, 140490), (140, 128448), (144, 124880), (160, 112392), (168, 107040), (180, 99904), (192, 93660), (210, 85632), (223, 80640), (224, 80280), (240, 74928), (252, 71360), (256, 70245), (280, 64224), (288, 62440), (315, 57088), (320, 56196), (336, 53520), (360, 49952), (384, 46830), (420, 42816), (446, 40320), (448, 40140), (480, 37464), (504, 35680), (560, 32112), (576, 31220), (630, 28544), (640, 28098), (669, 26880), (672, 26760), (720, 24976), (768, 23415), (840, 21408), (892, 20160), (896, 20070), (960, 18732), (1008, 17840), (1115, 16128), (1120, 16056), (1152, 15610), (1260, 14272), (1280, 14049), (1338, 13440), (1344, 13380), (1440, 12488), (1561, 11520), (1680, 10704), (1784, 10080), (1792, 10035), (1920, 9366), (2007, 8960), (2016, 8920), (2230, 8064), (2240, 8028), (2304, 7805), (2520, 7136), (2676, 6720), (2688, 6690), (2880, 6244), (3122, 5760), (3345, 5376), (3360, 5352), (3568, 5040), (3840, 4683), (4014, 4480), (4032, 4460)]