1445000

素因数分解:

$2^3\times 5^4\times {\mathrm{17}}^2$

素因数の和:60

約数の個数: 60

約数和(自身を含む): 3596505

約数和(自身を除く): 2151505

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, 3400, 4250, 5000, 5780, 7225, 8500, 10625, 11560, 14450, 17000, 21250, 28900, 36125, 42500, 57800, 72250, 85000, 144500, 180625, 289000, 361250, 722500, 1445000]

約数ペア:

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