137941900

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{919}}^1$

素因数の和:1031

約数の個数: 72

約数和(自身を含む): 319424000

約数和(自身を除く): 181482100

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 79, 95, 100, 158, 190, 316, 380, 395, 475, 790, 919, 950, 1501, 1580, 1838, 1900, 1975, 3002, 3676, 3950, 4595, 6004, 7505, 7900, 9190, 15010, 17461, 18380, 22975, 30020, 34922, 37525, 45950, 69844, 72601, 75050, 87305, 91900, 145202, 150100, 174610, 290404, 349220, 363005, 436525, 726010, 873050, 1379419, 1452020, 1746100, 1815025, 2758838, 3630050, 5517676, 6897095, 7260100, 13794190, 27588380, 34485475, 68970950, 137941900]

約数ペア:

[(1, 137941900), (2, 68970950), (4, 34485475), (5, 27588380), (10, 13794190), (19, 7260100), (20, 6897095), (25, 5517676), (38, 3630050), (50, 2758838), (76, 1815025), (79, 1746100), (95, 1452020), (100, 1379419), (158, 873050), (190, 726010), (316, 436525), (380, 363005), (395, 349220), (475, 290404), (790, 174610), (919, 150100), (950, 145202), (1501, 91900), (1580, 87305), (1838, 75050), (1900, 72601), (1975, 69844), (3002, 45950), (3676, 37525), (3950, 34922), (4595, 30020), (6004, 22975), (7505, 18380), (7900, 17461), (9190, 15010)]