3938375

素因数分解:

$5^3\times 7^2\times {\mathrm{643}}^1$

素因数の和:672

約数の個数: 24

約数和(自身を含む): 5726448

約数和(自身を除く): 1788073

約数列:

[1, 5, 7, 25, 35, 49, 125, 175, 245, 643, 875, 1225, 3215, 4501, 6125, 16075, 22505, 31507, 80375, 112525, 157535, 562625, 787675, 3938375]

約数ペア:

[(1, 3938375), (5, 787675), (7, 562625), (25, 157535), (35, 112525), (49, 80375), (125, 31507), (175, 22505), (245, 16075), (643, 6125), (875, 4501), (1225, 3215)]