400322

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{173}}^1$

素因数の和:277

約数の個数: 16

約数和(自身を含む): 657720

約数和(自身を除く): 257398

約数列:

[1, 2, 13, 26, 89, 173, 178, 346, 1157, 2249, 2314, 4498, 15397, 30794, 200161, 400322]

約数ペア:

[(1, 400322), (2, 200161), (13, 30794), (26, 15397), (89, 4498), (173, 2314), (178, 2249), (346, 1157)]