278441163

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{997}}^1$

素因数の和:1065

約数の個数: 96

約数和(自身を含む): 557985792

約数和(自身を除く): 279544629

約数列:

[1, 3, 7, 9, 11, 13, 21, 31, 33, 39, 63, 77, 91, 93, 99, 117, 143, 217, 231, 273, 279, 341, 403, 429, 651, 693, 819, 997, 1001, 1023, 1209, 1287, 1953, 2387, 2821, 2991, 3003, 3069, 3627, 4433, 6979, 7161, 8463, 8973, 9009, 10967, 12961, 13299, 20937, 21483, 25389, 30907, 31031, 32901, 38883, 39897, 62811, 76769, 90727, 92721, 93093, 98703, 116649, 142571, 216349, 230307, 272181, 278163, 279279, 339977, 401791, 427713, 649047, 690921, 816543, 997997, 1019931, 1205373, 1283139, 1947141, 2379839, 2812537, 2993991, 3059793, 3616119, 4419701, 7139517, 8437611, 8981973, 13259103, 21418551, 25312833, 30937907, 39777309, 92813721, 278441163]

約数ペア:

[(1, 278441163), (3, 92813721), (7, 39777309), (9, 30937907), (11, 25312833), (13, 21418551), (21, 13259103), (31, 8981973), (33, 8437611), (39, 7139517), (63, 4419701), (77, 3616119), (91, 3059793), (93, 2993991), (99, 2812537), (117, 2379839), (143, 1947141), (217, 1283139), (231, 1205373), (273, 1019931), (279, 997997), (341, 816543), (403, 690921), (429, 649047), (651, 427713), (693, 401791), (819, 339977), (997, 279279), (1001, 278163), (1023, 272181), (1209, 230307), (1287, 216349), (1953, 142571), (2387, 116649), (2821, 98703), (2991, 93093), (3003, 92721), (3069, 90727), (3627, 76769), (4433, 62811), (6979, 39897), (7161, 38883), (8463, 32901), (8973, 31031), (9009, 30907), (10967, 25389), (12961, 21483), (13299, 20937)]