18426500

素因数分解:

$2^2\times 5^3\times {\mathrm{137}}^1\times {\mathrm{269}}^1$

素因数の和:425

約数の個数: 48

約数和(自身を含む): 40687920

約数和(自身を除く): 22261420

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 137, 250, 269, 274, 500, 538, 548, 685, 1076, 1345, 1370, 2690, 2740, 3425, 5380, 6725, 6850, 13450, 13700, 17125, 26900, 33625, 34250, 36853, 67250, 68500, 73706, 134500, 147412, 184265, 368530, 737060, 921325, 1842650, 3685300, 4606625, 9213250, 18426500]

約数ペア:

[(1, 18426500), (2, 9213250), (4, 4606625), (5, 3685300), (10, 1842650), (20, 921325), (25, 737060), (50, 368530), (100, 184265), (125, 147412), (137, 134500), (250, 73706), (269, 68500), (274, 67250), (500, 36853), (538, 34250), (548, 33625), (685, 26900), (1076, 17125), (1345, 13700), (1370, 13450), (2690, 6850), (2740, 6725), (3425, 5380)]