13445000

素因数分解:

$2^3\times 5^4\times {\mathrm{2689}}^1$

素因数の和:2715

約数の個数: 40

約数和(自身を含む): 31513350

約数和(自身を除く): 18068350

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 500, 625, 1000, 1250, 2500, 2689, 5000, 5378, 10756, 13445, 21512, 26890, 53780, 67225, 107560, 134450, 268900, 336125, 537800, 672250, 1344500, 1680625, 2689000, 3361250, 6722500, 13445000]

約数ペア:

[(1, 13445000), (2, 6722500), (4, 3361250), (5, 2689000), (8, 1680625), (10, 1344500), (20, 672250), (25, 537800), (40, 336125), (50, 268900), (100, 134450), (125, 107560), (200, 67225), (250, 53780), (500, 26890), (625, 21512), (1000, 13445), (1250, 10756), (2500, 5378), (2689, 5000)]