18550240

素因数分解:

$2^5\times 5^1\times {\mathrm{269}}^1\times {\mathrm{431}}^1$

素因数の和:715

約数の個数: 48

約数和(自身を含む): 44089920

約数和(自身を除く): 25539680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 269, 431, 538, 862, 1076, 1345, 1724, 2152, 2155, 2690, 3448, 4304, 4310, 5380, 6896, 8608, 8620, 10760, 13792, 17240, 21520, 34480, 43040, 68960, 115939, 231878, 463756, 579695, 927512, 1159390, 1855024, 2318780, 3710048, 4637560, 9275120, 18550240]

約数ペア:

[(1, 18550240), (2, 9275120), (4, 4637560), (5, 3710048), (8, 2318780), (10, 1855024), (16, 1159390), (20, 927512), (32, 579695), (40, 463756), (80, 231878), (160, 115939), (269, 68960), (431, 43040), (538, 34480), (862, 21520), (1076, 17240), (1345, 13792), (1724, 10760), (2152, 8620), (2155, 8608), (2690, 6896), (3448, 5380), (4304, 4310)]