78710000

素因数分解:

$2^4\times 5^4\times {\mathrm{17}}^1\times {\mathrm{463}}^1$

素因数の和:508

約数の個数: 100

約数和(自身を含む): 202210272

約数和(自身を除く): 123500272

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 25, 34, 40, 50, 68, 80, 85, 100, 125, 136, 170, 200, 250, 272, 340, 400, 425, 463, 500, 625, 680, 850, 926, 1000, 1250, 1360, 1700, 1852, 2000, 2125, 2315, 2500, 3400, 3704, 4250, 4630, 5000, 6800, 7408, 7871, 8500, 9260, 10000, 10625, 11575, 15742, 17000, 18520, 21250, 23150, 31484, 34000, 37040, 39355, 42500, 46300, 57875, 62968, 78710, 85000, 92600, 115750, 125936, 157420, 170000, 185200, 196775, 231500, 289375, 314840, 393550, 463000, 578750, 629680, 787100, 926000, 983875, 1157500, 1574200, 1967750, 2315000, 3148400, 3935500, 4630000, 4919375, 7871000, 9838750, 15742000, 19677500, 39355000, 78710000]

約数ペア:

[(1, 78710000), (2, 39355000), (4, 19677500), (5, 15742000), (8, 9838750), (10, 7871000), (16, 4919375), (17, 4630000), (20, 3935500), (25, 3148400), (34, 2315000), (40, 1967750), (50, 1574200), (68, 1157500), (80, 983875), (85, 926000), (100, 787100), (125, 629680), (136, 578750), (170, 463000), (200, 393550), (250, 314840), (272, 289375), (340, 231500), (400, 196775), (425, 185200), (463, 170000), (500, 157420), (625, 125936), (680, 115750), (850, 92600), (926, 85000), (1000, 78710), (1250, 62968), (1360, 57875), (1700, 46300), (1852, 42500), (2000, 39355), (2125, 37040), (2315, 34000), (2500, 31484), (3400, 23150), (3704, 21250), (4250, 18520), (4630, 17000), (5000, 15742), (6800, 11575), (7408, 10625), (7871, 10000), (8500, 9260)]