20688225

素因数分解:

$3^1\times 5^2\times {\mathrm{47}}^1\times {\mathrm{5869}}^1$

素因数の和:5929

約数の個数: 24

約数和(自身を含む): 34938240

約数和(自身を除く): 14250015

約数列:

[1, 3, 5, 15, 25, 47, 75, 141, 235, 705, 1175, 3525, 5869, 17607, 29345, 88035, 146725, 275843, 440175, 827529, 1379215, 4137645, 6896075, 20688225]

約数ペア:

[(1, 20688225), (3, 6896075), (5, 4137645), (15, 1379215), (25, 827529), (47, 440175), (75, 275843), (141, 146725), (235, 88035), (705, 29345), (1175, 17607), (3525, 5869)]