216250

素因数分解:

$2^1\times 5^4\times {\mathrm{173}}^1$

素因数の和:195

約数の個数: 20

約数和(自身を含む): 407682

約数和(自身を除く): 191432

約数列:

[1, 2, 5, 10, 25, 50, 125, 173, 250, 346, 625, 865, 1250, 1730, 4325, 8650, 21625, 43250, 108125, 216250]

約数ペア:

[(1, 216250), (2, 108125), (5, 43250), (10, 21625), (25, 8650), (50, 4325), (125, 1730), (173, 1250), (250, 865), (346, 625)]