16956640

素因数分解:

$2^5\times 5^1\times {\mathrm{131}}^1\times {\mathrm{809}}^1$

素因数の和:955

約数の個数: 48

約数和(自身を含む): 40415760

約数和(自身を除く): 23459120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 131, 160, 262, 524, 655, 809, 1048, 1310, 1618, 2096, 2620, 3236, 4045, 4192, 5240, 6472, 8090, 10480, 12944, 16180, 20960, 25888, 32360, 64720, 105979, 129440, 211958, 423916, 529895, 847832, 1059790, 1695664, 2119580, 3391328, 4239160, 8478320, 16956640]

約数ペア:

[(1, 16956640), (2, 8478320), (4, 4239160), (5, 3391328), (8, 2119580), (10, 1695664), (16, 1059790), (20, 847832), (32, 529895), (40, 423916), (80, 211958), (131, 129440), (160, 105979), (262, 64720), (524, 32360), (655, 25888), (809, 20960), (1048, 16180), (1310, 12944), (1618, 10480), (2096, 8090), (2620, 6472), (3236, 5240), (4045, 4192)]