7225000

素因数分解:

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

素因数の和:65

約数の個数: 72

約数和(自身を含む): 17987130

約数和(自身を除く): 10762130

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 25, 34, 40, 50, 68, 85, 100, 125, 136, 170, 200, 250, 289, 340, 425, 500, 578, 625, 680, 850, 1000, 1156, 1250, 1445, 1700, 2125, 2312, 2500, 2890, 3125, 3400, 4250, 5000, 5780, 6250, 7225, 8500, 10625, 11560, 12500, 14450, 17000, 21250, 25000, 28900, 36125, 42500, 53125, 57800, 72250, 85000, 106250, 144500, 180625, 212500, 289000, 361250, 425000, 722500, 903125, 1445000, 1806250, 3612500, 7225000]

約数ペア:

[(1, 7225000), (2, 3612500), (4, 1806250), (5, 1445000), (8, 903125), (10, 722500), (17, 425000), (20, 361250), (25, 289000), (34, 212500), (40, 180625), (50, 144500), (68, 106250), (85, 85000), (100, 72250), (125, 57800), (136, 53125), (170, 42500), (200, 36125), (250, 28900), (289, 25000), (340, 21250), (425, 17000), (500, 14450), (578, 12500), (625, 11560), (680, 10625), (850, 8500), (1000, 7225), (1156, 6250), (1250, 5780), (1445, 5000), (1700, 4250), (2125, 3400), (2312, 3125), (2500, 2890)]