397864

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{1213}}^1$

素因数の和:1260

約数の個数: 16

約数和(自身を含む): 764820

約数和(自身を除く): 366956

約数列:

[1, 2, 4, 8, 41, 82, 164, 328, 1213, 2426, 4852, 9704, 49733, 99466, 198932, 397864]

約数ペア:

[(1, 397864), (2, 198932), (4, 99466), (8, 49733), (41, 9704), (82, 4852), (164, 2426), (328, 1213)]