25687220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{3187}}^1$

素因数の和:3240

約数の個数: 48

約数和(自身を含む): 59985408

約数和(自身を除く): 34298188

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 260, 310, 403, 620, 806, 1612, 2015, 3187, 4030, 6374, 8060, 12748, 15935, 31870, 41431, 63740, 82862, 98797, 165724, 197594, 207155, 395188, 414310, 493985, 828620, 987970, 1284361, 1975940, 2568722, 5137444, 6421805, 12843610, 25687220]

約数ペア:

[(1, 25687220), (2, 12843610), (4, 6421805), (5, 5137444), (10, 2568722), (13, 1975940), (20, 1284361), (26, 987970), (31, 828620), (52, 493985), (62, 414310), (65, 395188), (124, 207155), (130, 197594), (155, 165724), (260, 98797), (310, 82862), (403, 63740), (620, 41431), (806, 31870), (1612, 15935), (2015, 12748), (3187, 8060), (4030, 6374)]