81695500

素因数分解:

$2^2\times 5^3\times {\mathrm{109}}^1\times {\mathrm{1499}}^1$

素因数の和:1627

約数の個数: 48

約数和(自身を含む): 180180000

約数和(自身を除く): 98484500

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 109, 125, 218, 250, 436, 500, 545, 1090, 1499, 2180, 2725, 2998, 5450, 5996, 7495, 10900, 13625, 14990, 27250, 29980, 37475, 54500, 74950, 149900, 163391, 187375, 326782, 374750, 653564, 749500, 816955, 1633910, 3267820, 4084775, 8169550, 16339100, 20423875, 40847750, 81695500]

約数ペア:

[(1, 81695500), (2, 40847750), (4, 20423875), (5, 16339100), (10, 8169550), (20, 4084775), (25, 3267820), (50, 1633910), (100, 816955), (109, 749500), (125, 653564), (218, 374750), (250, 326782), (436, 187375), (500, 163391), (545, 149900), (1090, 74950), (1499, 54500), (2180, 37475), (2725, 29980), (2998, 27250), (5450, 14990), (5996, 13625), (7495, 10900)]