80853968

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{499}}^1$

素因数の和:580

約数の個数: 80

約数和(自身を含む): 182280000

約数和(自身を除く): 101426032

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 41, 52, 76, 82, 104, 152, 164, 208, 247, 304, 328, 494, 499, 533, 656, 779, 988, 998, 1066, 1558, 1976, 1996, 2132, 3116, 3952, 3992, 4264, 6232, 6487, 7984, 8528, 9481, 10127, 12464, 12974, 18962, 20254, 20459, 25948, 37924, 40508, 40918, 51896, 75848, 81016, 81836, 103792, 123253, 151696, 162032, 163672, 246506, 265967, 327344, 388721, 493012, 531934, 777442, 986024, 1063868, 1554884, 1972048, 2127736, 3109768, 4255472, 5053373, 6219536, 10106746, 20213492, 40426984, 80853968]

約数ペア:

[(1, 80853968), (2, 40426984), (4, 20213492), (8, 10106746), (13, 6219536), (16, 5053373), (19, 4255472), (26, 3109768), (38, 2127736), (41, 1972048), (52, 1554884), (76, 1063868), (82, 986024), (104, 777442), (152, 531934), (164, 493012), (208, 388721), (247, 327344), (304, 265967), (328, 246506), (494, 163672), (499, 162032), (533, 151696), (656, 123253), (779, 103792), (988, 81836), (998, 81016), (1066, 75848), (1558, 51896), (1976, 40918), (1996, 40508), (2132, 37924), (3116, 25948), (3952, 20459), (3992, 20254), (4264, 18962), (6232, 12974), (6487, 12464), (7984, 10127), (8528, 9481)]