161875

素因数分解:

$5^4\times 7^1\times {\mathrm{37}}^1$

素因数の和:64

約数の個数: 20

約数和(自身を含む): 237424

約数和(自身を除く): 75549

約数列:

[1, 5, 7, 25, 35, 37, 125, 175, 185, 259, 625, 875, 925, 1295, 4375, 4625, 6475, 23125, 32375, 161875]

約数ペア:

[(1, 161875), (5, 32375), (7, 23125), (25, 6475), (35, 4625), (37, 4375), (125, 1295), (175, 925), (185, 875), (259, 625)]