81055520

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{293}}^1$

素因数の和:347

約数の個数: 192

約数和(自身を含む): 248935680

約数和(自身を除く): 167880160

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 19, 20, 26, 28, 32, 35, 38, 40, 52, 56, 65, 70, 76, 80, 91, 95, 104, 112, 130, 133, 140, 152, 160, 182, 190, 208, 224, 247, 260, 266, 280, 293, 304, 364, 380, 416, 455, 494, 520, 532, 560, 586, 608, 665, 728, 760, 910, 988, 1040, 1064, 1120, 1172, 1235, 1330, 1456, 1465, 1520, 1729, 1820, 1976, 2051, 2080, 2128, 2344, 2470, 2660, 2912, 2930, 3040, 3458, 3640, 3809, 3952, 4102, 4256, 4688, 4940, 5320, 5567, 5860, 6916, 7280, 7618, 7904, 8204, 8645, 9376, 9880, 10255, 10640, 11134, 11720, 13832, 14560, 15236, 16408, 17290, 19045, 19760, 20510, 21280, 22268, 23440, 26663, 27664, 27835, 30472, 32816, 34580, 38090, 38969, 39520, 41020, 44536, 46880, 53326, 55328, 55670, 60944, 65632, 69160, 72371, 76180, 77938, 82040, 89072, 106652, 111340, 121888, 133315, 138320, 144742, 152360, 155876, 164080, 178144, 194845, 213304, 222680, 266630, 276640, 289484, 304720, 311752, 328160, 361855, 389690, 426608, 445360, 506597, 533260, 578968, 609440, 623504, 723710, 779380, 853216, 890720, 1013194, 1066520, 1157936, 1247008, 1447420, 1558760, 2026388, 2133040, 2315872, 2532985, 2894840, 3117520, 4052776, 4266080, 5065970, 5789680, 6235040, 8105552, 10131940, 11579360, 16211104, 20263880, 40527760, 81055520]

約数ペア:

[(1, 81055520), (2, 40527760), (4, 20263880), (5, 16211104), (7, 11579360), (8, 10131940), (10, 8105552), (13, 6235040), (14, 5789680), (16, 5065970), (19, 4266080), (20, 4052776), (26, 3117520), (28, 2894840), (32, 2532985), (35, 2315872), (38, 2133040), (40, 2026388), (52, 1558760), (56, 1447420), (65, 1247008), (70, 1157936), (76, 1066520), (80, 1013194), (91, 890720), (95, 853216), (104, 779380), (112, 723710), (130, 623504), (133, 609440), (140, 578968), (152, 533260), (160, 506597), (182, 445360), (190, 426608), (208, 389690), (224, 361855), (247, 328160), (260, 311752), (266, 304720), (280, 289484), (293, 276640), (304, 266630), (364, 222680), (380, 213304), (416, 194845), (455, 178144), (494, 164080), (520, 155876), (532, 152360), (560, 144742), (586, 138320), (608, 133315), (665, 121888), (728, 111340), (760, 106652), (910, 89072), (988, 82040), (1040, 77938), (1064, 76180), (1120, 72371), (1172, 69160), (1235, 65632), (1330, 60944), (1456, 55670), (1465, 55328), (1520, 53326), (1729, 46880), (1820, 44536), (1976, 41020), (2051, 39520), (2080, 38969), (2128, 38090), (2344, 34580), (2470, 32816), (2660, 30472), (2912, 27835), (2930, 27664), (3040, 26663), (3458, 23440), (3640, 22268), (3809, 21280), (3952, 20510), (4102, 19760), (4256, 19045), (4688, 17290), (4940, 16408), (5320, 15236), (5567, 14560), (5860, 13832), (6916, 11720), (7280, 11134), (7618, 10640), (7904, 10255), (8204, 9880), (8645, 9376)]