2125000

素因数分解:

$2^3\times 5^6\times {\mathrm{17}}^1$

素因数の和:53

約数の個数: 56

約数和(自身を含む): 5273370

約数和(自身を除く): 3148370

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 25, 34, 40, 50, 68, 85, 100, 125, 136, 170, 200, 250, 340, 425, 500, 625, 680, 850, 1000, 1250, 1700, 2125, 2500, 3125, 3400, 4250, 5000, 6250, 8500, 10625, 12500, 15625, 17000, 21250, 25000, 31250, 42500, 53125, 62500, 85000, 106250, 125000, 212500, 265625, 425000, 531250, 1062500, 2125000]

約数ペア:

[(1, 2125000), (2, 1062500), (4, 531250), (5, 425000), (8, 265625), (10, 212500), (17, 125000), (20, 106250), (25, 85000), (34, 62500), (40, 53125), (50, 42500), (68, 31250), (85, 25000), (100, 21250), (125, 17000), (136, 15625), (170, 12500), (200, 10625), (250, 8500), (340, 6250), (425, 5000), (500, 4250), (625, 3400), (680, 3125), (850, 2500), (1000, 2125), (1250, 1700)]