138950

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{397}}^1$

素因数の和:416

約数の個数: 24

約数和(自身を含む): 296112

約数和(自身を除く): 157162

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 175, 350, 397, 794, 1985, 2779, 3970, 5558, 9925, 13895, 19850, 27790, 69475, 138950]

約数ペア:

[(1, 138950), (2, 69475), (5, 27790), (7, 19850), (10, 13895), (14, 9925), (25, 5558), (35, 3970), (50, 2779), (70, 1985), (175, 794), (350, 397)]