12780080

素因数分解:

$2^4\times 5^1\times {\mathrm{107}}^1\times {\mathrm{1493}}^1$

素因数の和:1613

約数の個数: 40

約数和(自身を含む): 30011472

約数和(自身を除く): 17231392

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 107, 214, 428, 535, 856, 1070, 1493, 1712, 2140, 2986, 4280, 5972, 7465, 8560, 11944, 14930, 23888, 29860, 59720, 119440, 159751, 319502, 639004, 798755, 1278008, 1597510, 2556016, 3195020, 6390040, 12780080]

約数ペア:

[(1, 12780080), (2, 6390040), (4, 3195020), (5, 2556016), (8, 1597510), (10, 1278008), (16, 798755), (20, 639004), (40, 319502), (80, 159751), (107, 119440), (214, 59720), (428, 29860), (535, 23888), (856, 14930), (1070, 11944), (1493, 8560), (1712, 7465), (2140, 5972), (2986, 4280)]