19635625

素因数分解:

$5^4\times {\mathrm{89}}^1\times {\mathrm{353}}^1$

素因数の和:462

約数の個数: 20

約数和(自身を含む): 24882660

約数和(自身を除く): 5247035

約数列:

[1, 5, 25, 89, 125, 353, 445, 625, 1765, 2225, 8825, 11125, 31417, 44125, 55625, 157085, 220625, 785425, 3927125, 19635625]

約数ペア:

[(1, 19635625), (5, 3927125), (25, 785425), (89, 220625), (125, 157085), (353, 55625), (445, 44125), (625, 31417), (1765, 11125), (2225, 8825)]