19935875

素因数分解:

$5^3\times {\mathrm{43}}^1\times {\mathrm{3709}}^1$

素因数の和:3767

約数の個数: 16

約数和(自身を含む): 25465440

約数和(自身を除く): 5529565

約数列:

[1, 5, 25, 43, 125, 215, 1075, 3709, 5375, 18545, 92725, 159487, 463625, 797435, 3987175, 19935875]

約数ペア:

[(1, 19935875), (5, 3987175), (25, 797435), (43, 463625), (125, 159487), (215, 92725), (1075, 18545), (3709, 5375)]