81310000

素因数分解:

$2^4\times 5^4\times {\mathrm{47}}^1\times {\mathrm{173}}^1$

素因数の和:248

約数の個数: 100

約数和(自身を含む): 202210272

約数和(自身を除く): 120900272

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 47, 50, 80, 94, 100, 125, 173, 188, 200, 235, 250, 346, 376, 400, 470, 500, 625, 692, 752, 865, 940, 1000, 1175, 1250, 1384, 1730, 1880, 2000, 2350, 2500, 2768, 3460, 3760, 4325, 4700, 5000, 5875, 6920, 8131, 8650, 9400, 10000, 11750, 13840, 16262, 17300, 18800, 21625, 23500, 29375, 32524, 34600, 40655, 43250, 47000, 58750, 65048, 69200, 81310, 86500, 94000, 108125, 117500, 130096, 162620, 173000, 203275, 216250, 235000, 325240, 346000, 406550, 432500, 470000, 650480, 813100, 865000, 1016375, 1626200, 1730000, 2032750, 3252400, 4065500, 5081875, 8131000, 10163750, 16262000, 20327500, 40655000, 81310000]

約数ペア:

[(1, 81310000), (2, 40655000), (4, 20327500), (5, 16262000), (8, 10163750), (10, 8131000), (16, 5081875), (20, 4065500), (25, 3252400), (40, 2032750), (47, 1730000), (50, 1626200), (80, 1016375), (94, 865000), (100, 813100), (125, 650480), (173, 470000), (188, 432500), (200, 406550), (235, 346000), (250, 325240), (346, 235000), (376, 216250), (400, 203275), (470, 173000), (500, 162620), (625, 130096), (692, 117500), (752, 108125), (865, 94000), (940, 86500), (1000, 81310), (1175, 69200), (1250, 65048), (1384, 58750), (1730, 47000), (1880, 43250), (2000, 40655), (2350, 34600), (2500, 32524), (2768, 29375), (3460, 23500), (3760, 21625), (4325, 18800), (4700, 17300), (5000, 16262), (5875, 13840), (6920, 11750), (8131, 10000), (8650, 9400)]