81284976

素因数分解:

$2^4\times 3^2\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{139}}^1$

素因数の和:315

約数の個数: 120

約数和(自身を含む): 238318080

約数和(自身を除く): 157033104

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 31, 36, 48, 62, 72, 93, 124, 131, 139, 144, 186, 248, 262, 278, 279, 372, 393, 417, 496, 524, 556, 558, 744, 786, 834, 1048, 1112, 1116, 1179, 1251, 1488, 1572, 1668, 2096, 2224, 2232, 2358, 2502, 3144, 3336, 4061, 4309, 4464, 4716, 5004, 6288, 6672, 8122, 8618, 9432, 10008, 12183, 12927, 16244, 17236, 18209, 18864, 20016, 24366, 25854, 32488, 34472, 36418, 36549, 38781, 48732, 51708, 54627, 64976, 68944, 72836, 73098, 77562, 97464, 103416, 109254, 145672, 146196, 155124, 163881, 194928, 206832, 218508, 291344, 292392, 310248, 327762, 437016, 564479, 584784, 620496, 655524, 874032, 1128958, 1311048, 1693437, 2257916, 2622096, 3386874, 4515832, 5080311, 6773748, 9031664, 10160622, 13547496, 20321244, 27094992, 40642488, 81284976]

約数ペア:

[(1, 81284976), (2, 40642488), (3, 27094992), (4, 20321244), (6, 13547496), (8, 10160622), (9, 9031664), (12, 6773748), (16, 5080311), (18, 4515832), (24, 3386874), (31, 2622096), (36, 2257916), (48, 1693437), (62, 1311048), (72, 1128958), (93, 874032), (124, 655524), (131, 620496), (139, 584784), (144, 564479), (186, 437016), (248, 327762), (262, 310248), (278, 292392), (279, 291344), (372, 218508), (393, 206832), (417, 194928), (496, 163881), (524, 155124), (556, 146196), (558, 145672), (744, 109254), (786, 103416), (834, 97464), (1048, 77562), (1112, 73098), (1116, 72836), (1179, 68944), (1251, 64976), (1488, 54627), (1572, 51708), (1668, 48732), (2096, 38781), (2224, 36549), (2232, 36418), (2358, 34472), (2502, 32488), (3144, 25854), (3336, 24366), (4061, 20016), (4309, 18864), (4464, 18209), (4716, 17236), (5004, 16244), (6288, 12927), (6672, 12183), (8122, 10008), (8618, 9432)]