129774640

素因数分解:

$2^4\times 5^1\times {\mathrm{509}}^1\times {\mathrm{3187}}^1$

素因数の和:3709

約数の個数: 40

約数和(自身を含む): 302413680

約数和(自身を除く): 172639040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 509, 1018, 2036, 2545, 3187, 4072, 5090, 6374, 8144, 10180, 12748, 15935, 20360, 25496, 31870, 40720, 50992, 63740, 127480, 254960, 1622183, 3244366, 6488732, 8110915, 12977464, 16221830, 25954928, 32443660, 64887320, 129774640]

約数ペア:

[(1, 129774640), (2, 64887320), (4, 32443660), (5, 25954928), (8, 16221830), (10, 12977464), (16, 8110915), (20, 6488732), (40, 3244366), (80, 1622183), (509, 254960), (1018, 127480), (2036, 63740), (2545, 50992), (3187, 40720), (4072, 31870), (5090, 25496), (6374, 20360), (8144, 15935), (10180, 12748)]