1210001080

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{703489}}^1$

素因数の和:703543

約数の個数: 32

約数和(自身を含む): 2785820400

約数和(自身を除く): 1575819320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 703489, 1406978, 2813956, 3517445, 5627912, 7034890, 14069780, 28139560, 30250027, 60500054, 121000108, 151250135, 242000216, 302500270, 605000540, 1210001080]

約数ペア:

[(1, 1210001080), (2, 605000540), (4, 302500270), (5, 242000216), (8, 151250135), (10, 121000108), (20, 60500054), (40, 30250027), (43, 28139560), (86, 14069780), (172, 7034890), (215, 5627912), (344, 3517445), (430, 2813956), (860, 1406978), (1720, 703489)]