81502680

素因数分解:

$2^3\times 3^1\times 5^1\times 7^2\times {\mathrm{83}}^1\times {\mathrm{167}}^1$

素因数の和:278

約数の個数: 192

約数和(自身を含む): 289578240

約数和(自身を除く): 208075560

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 49, 56, 60, 70, 83, 84, 98, 105, 120, 140, 147, 166, 167, 168, 196, 210, 245, 249, 280, 294, 332, 334, 392, 415, 420, 490, 498, 501, 581, 588, 664, 668, 735, 830, 835, 840, 980, 996, 1002, 1162, 1169, 1176, 1245, 1336, 1470, 1660, 1670, 1743, 1960, 1992, 2004, 2324, 2338, 2490, 2505, 2905, 2940, 3320, 3340, 3486, 3507, 4008, 4067, 4648, 4676, 4980, 5010, 5810, 5845, 5880, 6680, 6972, 7014, 8134, 8183, 8715, 9352, 9960, 10020, 11620, 11690, 12201, 13861, 13944, 14028, 16268, 16366, 17430, 17535, 20040, 20335, 23240, 23380, 24402, 24549, 27722, 28056, 32536, 32732, 34860, 35070, 40670, 40915, 41583, 46760, 48804, 49098, 55444, 61005, 65464, 69305, 69720, 70140, 81340, 81830, 83166, 97027, 97608, 98196, 110888, 122010, 122745, 138610, 140280, 162680, 163660, 166332, 194054, 196392, 207915, 244020, 245490, 277220, 291081, 327320, 332664, 388108, 415830, 485135, 488040, 490980, 554440, 582162, 679189, 776216, 831660, 970270, 981960, 1164324, 1358378, 1455405, 1663320, 1940540, 2037567, 2328648, 2716756, 2910810, 3395945, 3881080, 4075134, 5433512, 5821620, 6791890, 8150268, 10187835, 11643240, 13583780, 16300536, 20375670, 27167560, 40751340, 81502680]

約数ペア:

[(1, 81502680), (2, 40751340), (3, 27167560), (4, 20375670), (5, 16300536), (6, 13583780), (7, 11643240), (8, 10187835), (10, 8150268), (12, 6791890), (14, 5821620), (15, 5433512), (20, 4075134), (21, 3881080), (24, 3395945), (28, 2910810), (30, 2716756), (35, 2328648), (40, 2037567), (42, 1940540), (49, 1663320), (56, 1455405), (60, 1358378), (70, 1164324), (83, 981960), (84, 970270), (98, 831660), (105, 776216), (120, 679189), (140, 582162), (147, 554440), (166, 490980), (167, 488040), (168, 485135), (196, 415830), (210, 388108), (245, 332664), (249, 327320), (280, 291081), (294, 277220), (332, 245490), (334, 244020), (392, 207915), (415, 196392), (420, 194054), (490, 166332), (498, 163660), (501, 162680), (581, 140280), (588, 138610), (664, 122745), (668, 122010), (735, 110888), (830, 98196), (835, 97608), (840, 97027), (980, 83166), (996, 81830), (1002, 81340), (1162, 70140), (1169, 69720), (1176, 69305), (1245, 65464), (1336, 61005), (1470, 55444), (1660, 49098), (1670, 48804), (1743, 46760), (1960, 41583), (1992, 40915), (2004, 40670), (2324, 35070), (2338, 34860), (2490, 32732), (2505, 32536), (2905, 28056), (2940, 27722), (3320, 24549), (3340, 24402), (3486, 23380), (3507, 23240), (4008, 20335), (4067, 20040), (4648, 17535), (4676, 17430), (4980, 16366), (5010, 16268), (5810, 14028), (5845, 13944), (5880, 13861), (6680, 12201), (6972, 11690), (7014, 11620), (8134, 10020), (8183, 9960), (8715, 9352)]