8170000

素因数分解:

$2^4\times 5^4\times {\mathrm{19}}^1\times {\mathrm{43}}^1$

素因数の和:90

約数の個数: 100

約数和(自身を含む): 21305680

約数和(自身を除く): 13135680

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 38, 40, 43, 50, 76, 80, 86, 95, 100, 125, 152, 172, 190, 200, 215, 250, 304, 344, 380, 400, 430, 475, 500, 625, 688, 760, 817, 860, 950, 1000, 1075, 1250, 1520, 1634, 1720, 1900, 2000, 2150, 2375, 2500, 3268, 3440, 3800, 4085, 4300, 4750, 5000, 5375, 6536, 7600, 8170, 8600, 9500, 10000, 10750, 11875, 13072, 16340, 17200, 19000, 20425, 21500, 23750, 26875, 32680, 38000, 40850, 43000, 47500, 53750, 65360, 81700, 86000, 95000, 102125, 107500, 163400, 190000, 204250, 215000, 326800, 408500, 430000, 510625, 817000, 1021250, 1634000, 2042500, 4085000, 8170000]

約数ペア:

[(1, 8170000), (2, 4085000), (4, 2042500), (5, 1634000), (8, 1021250), (10, 817000), (16, 510625), (19, 430000), (20, 408500), (25, 326800), (38, 215000), (40, 204250), (43, 190000), (50, 163400), (76, 107500), (80, 102125), (86, 95000), (95, 86000), (100, 81700), (125, 65360), (152, 53750), (172, 47500), (190, 43000), (200, 40850), (215, 38000), (250, 32680), (304, 26875), (344, 23750), (380, 21500), (400, 20425), (430, 19000), (475, 17200), (500, 16340), (625, 13072), (688, 11875), (760, 10750), (817, 10000), (860, 9500), (950, 8600), (1000, 8170), (1075, 7600), (1250, 6536), (1520, 5375), (1634, 5000), (1720, 4750), (1900, 4300), (2000, 4085), (2150, 3800), (2375, 3440), (2500, 3268)]