28085000

素因数分解:

$2^3\times 5^4\times {\mathrm{41}}^1\times {\mathrm{137}}^1$

素因数の和:204

約数の個数: 80

約数和(自身を含む): 67900140

約数和(自身を除く): 39815140

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 41, 50, 82, 100, 125, 137, 164, 200, 205, 250, 274, 328, 410, 500, 548, 625, 685, 820, 1000, 1025, 1096, 1250, 1370, 1640, 2050, 2500, 2740, 3425, 4100, 5000, 5125, 5480, 5617, 6850, 8200, 10250, 11234, 13700, 17125, 20500, 22468, 25625, 27400, 28085, 34250, 41000, 44936, 51250, 56170, 68500, 85625, 102500, 112340, 137000, 140425, 171250, 205000, 224680, 280850, 342500, 561700, 685000, 702125, 1123400, 1404250, 2808500, 3510625, 5617000, 7021250, 14042500, 28085000]

約数ペア:

[(1, 28085000), (2, 14042500), (4, 7021250), (5, 5617000), (8, 3510625), (10, 2808500), (20, 1404250), (25, 1123400), (40, 702125), (41, 685000), (50, 561700), (82, 342500), (100, 280850), (125, 224680), (137, 205000), (164, 171250), (200, 140425), (205, 137000), (250, 112340), (274, 102500), (328, 85625), (410, 68500), (500, 56170), (548, 51250), (625, 44936), (685, 41000), (820, 34250), (1000, 28085), (1025, 27400), (1096, 25625), (1250, 22468), (1370, 20500), (1640, 17125), (2050, 13700), (2500, 11234), (2740, 10250), (3425, 8200), (4100, 6850), (5000, 5617), (5125, 5480)]