12896990

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{337}}^1$

素因数の和:476

約数の個数: 32

約数和(自身を含む): 24092640

約数和(自身を除く): 11195650

約数列:

[1, 2, 5, 10, 43, 86, 89, 178, 215, 337, 430, 445, 674, 890, 1685, 3370, 3827, 7654, 14491, 19135, 28982, 29993, 38270, 59986, 72455, 144910, 149965, 299930, 1289699, 2579398, 6448495, 12896990]

約数ペア:

[(1, 12896990), (2, 6448495), (5, 2579398), (10, 1289699), (43, 299930), (86, 149965), (89, 144910), (178, 72455), (215, 59986), (337, 38270), (430, 29993), (445, 28982), (674, 19135), (890, 14491), (1685, 7654), (3370, 3827)]