18012250

素因数分解:

$2^1\times 5^3\times {\mathrm{109}}^1\times {\mathrm{661}}^1$

素因数の和:787

約数の個数: 32

約数和(自身を含む): 34079760

約数和(自身を除く): 16067510

約数列:

[1, 2, 5, 10, 25, 50, 109, 125, 218, 250, 545, 661, 1090, 1322, 2725, 3305, 5450, 6610, 13625, 16525, 27250, 33050, 72049, 82625, 144098, 165250, 360245, 720490, 1801225, 3602450, 9006125, 18012250]

約数ペア:

[(1, 18012250), (2, 9006125), (5, 3602450), (10, 1801225), (25, 720490), (50, 360245), (109, 165250), (125, 144098), (218, 82625), (250, 72049), (545, 33050), (661, 27250), (1090, 16525), (1322, 13625), (2725, 6610), (3305, 5450)]