16140380

素因数分解:

$2^2\times 5^1\times {\mathrm{641}}^1\times {\mathrm{1259}}^1$

素因数の和:1909

約数の個数: 24

約数和(自身を含む): 33974640

約数和(自身を除く): 17834260

約数列:

[1, 2, 4, 5, 10, 20, 641, 1259, 1282, 2518, 2564, 3205, 5036, 6295, 6410, 12590, 12820, 25180, 807019, 1614038, 3228076, 4035095, 8070190, 16140380]

約数ペア:

[(1, 16140380), (2, 8070190), (4, 4035095), (5, 3228076), (10, 1614038), (20, 807019), (641, 25180), (1259, 12820), (1282, 12590), (2518, 6410), (2564, 6295), (3205, 5036)]