81291234

素因数分解:

$2^1\times 3^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{367}}^1$

素因数の和:487

約数の個数: 64

約数和(自身を含む): 180172800

約数和(自身を除く): 98881566

約数列:

[1, 2, 3, 6, 19, 29, 38, 57, 58, 67, 87, 114, 134, 174, 201, 367, 402, 551, 734, 1101, 1102, 1273, 1653, 1943, 2202, 2546, 3306, 3819, 3886, 5829, 6973, 7638, 10643, 11658, 13946, 20919, 21286, 24589, 31929, 36917, 41838, 49178, 63858, 73767, 73834, 110751, 147534, 202217, 221502, 404434, 467191, 606651, 713081, 934382, 1213302, 1401573, 1426162, 2139243, 2803146, 4278486, 13548539, 27097078, 40645617, 81291234]

約数ペア:

[(1, 81291234), (2, 40645617), (3, 27097078), (6, 13548539), (19, 4278486), (29, 2803146), (38, 2139243), (57, 1426162), (58, 1401573), (67, 1213302), (87, 934382), (114, 713081), (134, 606651), (174, 467191), (201, 404434), (367, 221502), (402, 202217), (551, 147534), (734, 110751), (1101, 73834), (1102, 73767), (1273, 63858), (1653, 49178), (1943, 41838), (2202, 36917), (2546, 31929), (3306, 24589), (3819, 21286), (3886, 20919), (5829, 13946), (6973, 11658), (7638, 10643)]