289662920

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{314851}}^1$

素因数の和:314885

約数の個数: 32

約数和(自身を含む): 680080320

約数和(自身を除く): 390417400

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 314851, 629702, 1259404, 1574255, 2518808, 3148510, 6297020, 7241573, 12594040, 14483146, 28966292, 36207865, 57932584, 72415730, 144831460, 289662920]

約数ペア:

[(1, 289662920), (2, 144831460), (4, 72415730), (5, 57932584), (8, 36207865), (10, 28966292), (20, 14483146), (23, 12594040), (40, 7241573), (46, 6297020), (92, 3148510), (115, 2518808), (184, 1574255), (230, 1259404), (460, 629702), (920, 314851)]