12685000

素因数分解:

$2^3\times 5^4\times {\mathrm{43}}^1\times {\mathrm{59}}^1$

素因数の和:128

約数の個数: 80

約数和(自身を含む): 30927600

約数和(自身を除く): 18242600

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 43, 50, 59, 86, 100, 118, 125, 172, 200, 215, 236, 250, 295, 344, 430, 472, 500, 590, 625, 860, 1000, 1075, 1180, 1250, 1475, 1720, 2150, 2360, 2500, 2537, 2950, 4300, 5000, 5074, 5375, 5900, 7375, 8600, 10148, 10750, 11800, 12685, 14750, 20296, 21500, 25370, 26875, 29500, 36875, 43000, 50740, 53750, 59000, 63425, 73750, 101480, 107500, 126850, 147500, 215000, 253700, 295000, 317125, 507400, 634250, 1268500, 1585625, 2537000, 3171250, 6342500, 12685000]

約数ペア:

[(1, 12685000), (2, 6342500), (4, 3171250), (5, 2537000), (8, 1585625), (10, 1268500), (20, 634250), (25, 507400), (40, 317125), (43, 295000), (50, 253700), (59, 215000), (86, 147500), (100, 126850), (118, 107500), (125, 101480), (172, 73750), (200, 63425), (215, 59000), (236, 53750), (250, 50740), (295, 43000), (344, 36875), (430, 29500), (472, 26875), (500, 25370), (590, 21500), (625, 20296), (860, 14750), (1000, 12685), (1075, 11800), (1180, 10750), (1250, 10148), (1475, 8600), (1720, 7375), (2150, 5900), (2360, 5375), (2500, 5074), (2537, 5000), (2950, 4300)]