399350

素因数分解:

$2^1\times 5^2\times 7^2\times {\mathrm{163}}^1$

素因数の和:189

約数の個数: 36

約数和(自身を含む): 869364

約数和(自身を除く): 470014

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 49, 50, 70, 98, 163, 175, 245, 326, 350, 490, 815, 1141, 1225, 1630, 2282, 2450, 4075, 5705, 7987, 8150, 11410, 15974, 28525, 39935, 57050, 79870, 199675, 399350]

約数ペア:

[(1, 399350), (2, 199675), (5, 79870), (7, 57050), (10, 39935), (14, 28525), (25, 15974), (35, 11410), (49, 8150), (50, 7987), (70, 5705), (98, 4075), (163, 2450), (175, 2282), (245, 1630), (326, 1225), (350, 1141), (490, 815)]