8460140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{2503}}^1$

素因数の和:2538

約数の個数: 36

約数和(自身を含む): 19245744

約数和(自身を除く): 10785604

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 2503, 3380, 5006, 10012, 12515, 25030, 32539, 50060, 65078, 130156, 162695, 325390, 423007, 650780, 846014, 1692028, 2115035, 4230070, 8460140]

約数ペア:

[(1, 8460140), (2, 4230070), (4, 2115035), (5, 1692028), (10, 846014), (13, 650780), (20, 423007), (26, 325390), (52, 162695), (65, 130156), (130, 65078), (169, 50060), (260, 32539), (338, 25030), (676, 12515), (845, 10012), (1690, 5006), (2503, 3380)]