8500000

素因数分解:

$2^5\times 5^6\times {\mathrm{17}}^1$

素因数の和:57

約数の個数: 84

約数和(自身を含む): 22148154

約数和(自身を除く): 13648154

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 25, 32, 34, 40, 50, 68, 80, 85, 100, 125, 136, 160, 170, 200, 250, 272, 340, 400, 425, 500, 544, 625, 680, 800, 850, 1000, 1250, 1360, 1700, 2000, 2125, 2500, 2720, 3125, 3400, 4000, 4250, 5000, 6250, 6800, 8500, 10000, 10625, 12500, 13600, 15625, 17000, 20000, 21250, 25000, 31250, 34000, 42500, 50000, 53125, 62500, 68000, 85000, 100000, 106250, 125000, 170000, 212500, 250000, 265625, 340000, 425000, 500000, 531250, 850000, 1062500, 1700000, 2125000, 4250000, 8500000]

約数ペア:

[(1, 8500000), (2, 4250000), (4, 2125000), (5, 1700000), (8, 1062500), (10, 850000), (16, 531250), (17, 500000), (20, 425000), (25, 340000), (32, 265625), (34, 250000), (40, 212500), (50, 170000), (68, 125000), (80, 106250), (85, 100000), (100, 85000), (125, 68000), (136, 62500), (160, 53125), (170, 50000), (200, 42500), (250, 34000), (272, 31250), (340, 25000), (400, 21250), (425, 20000), (500, 17000), (544, 15625), (625, 13600), (680, 12500), (800, 10625), (850, 10000), (1000, 8500), (1250, 6800), (1360, 6250), (1700, 5000), (2000, 4250), (2125, 4000), (2500, 3400), (2720, 3125)]