1385000

素因数分解:

$2^3\times 5^4\times {\mathrm{277}}^1$

素因数の和:303

約数の個数: 40

約数和(自身を含む): 3256770

約数和(自身を除く): 1871770

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 277, 500, 554, 625, 1000, 1108, 1250, 1385, 2216, 2500, 2770, 5000, 5540, 6925, 11080, 13850, 27700, 34625, 55400, 69250, 138500, 173125, 277000, 346250, 692500, 1385000]

約数ペア:

[(1, 1385000), (2, 692500), (4, 346250), (5, 277000), (8, 173125), (10, 138500), (20, 69250), (25, 55400), (40, 34625), (50, 27700), (100, 13850), (125, 11080), (200, 6925), (250, 5540), (277, 5000), (500, 2770), (554, 2500), (625, 2216), (1000, 1385), (1108, 1250)]