129656500

素因数分解:

$2^2\times 5^3\times {\mathrm{257}}^1\times {\mathrm{1009}}^1$

素因数の和:1285

約数の個数: 48

約数和(自身を含む): 284553360

約数和(自身を除く): 154896860

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 250, 257, 500, 514, 1009, 1028, 1285, 2018, 2570, 4036, 5045, 5140, 6425, 10090, 12850, 20180, 25225, 25700, 32125, 50450, 64250, 100900, 126125, 128500, 252250, 259313, 504500, 518626, 1037252, 1296565, 2593130, 5186260, 6482825, 12965650, 25931300, 32414125, 64828250, 129656500]

約数ペア:

[(1, 129656500), (2, 64828250), (4, 32414125), (5, 25931300), (10, 12965650), (20, 6482825), (25, 5186260), (50, 2593130), (100, 1296565), (125, 1037252), (250, 518626), (257, 504500), (500, 259313), (514, 252250), (1009, 128500), (1028, 126125), (1285, 100900), (2018, 64250), (2570, 50450), (4036, 32125), (5045, 25700), (5140, 25225), (6425, 20180), (10090, 12850)]