18339500

素因数分解:

$2^2\times 5^3\times {\mathrm{43}}^1\times {\mathrm{853}}^1$

素因数の和:915

約数の個数: 48

約数和(自身を含む): 41032992

約数和(自身を除く): 22693492

約数列:

[1, 2, 4, 5, 10, 20, 25, 43, 50, 86, 100, 125, 172, 215, 250, 430, 500, 853, 860, 1075, 1706, 2150, 3412, 4265, 4300, 5375, 8530, 10750, 17060, 21325, 21500, 36679, 42650, 73358, 85300, 106625, 146716, 183395, 213250, 366790, 426500, 733580, 916975, 1833950, 3667900, 4584875, 9169750, 18339500]

約数ペア:

[(1, 18339500), (2, 9169750), (4, 4584875), (5, 3667900), (10, 1833950), (20, 916975), (25, 733580), (43, 426500), (50, 366790), (86, 213250), (100, 183395), (125, 146716), (172, 106625), (215, 85300), (250, 73358), (430, 42650), (500, 36679), (853, 21500), (860, 21325), (1075, 17060), (1706, 10750), (2150, 8530), (3412, 5375), (4265, 4300)]