28901875

素因数分解:

$5^4\times {\mathrm{131}}^1\times {\mathrm{353}}^1$

素因数の和:504

約数の個数: 20

約数和(自身を含む): 36494568

約数和(自身を除く): 7592693

約数列:

[1, 5, 25, 125, 131, 353, 625, 655, 1765, 3275, 8825, 16375, 44125, 46243, 81875, 220625, 231215, 1156075, 5780375, 28901875]

約数ペア:

[(1, 28901875), (5, 5780375), (25, 1156075), (125, 231215), (131, 220625), (353, 81875), (625, 46243), (655, 44125), (1765, 16375), (3275, 8825)]