8204920

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{5003}}^1$

素因数の和:5055

約数の個数: 32

約数和(自身を含む): 18915120

約数和(自身を除く): 10710200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 5003, 10006, 20012, 25015, 40024, 50030, 100060, 200120, 205123, 410246, 820492, 1025615, 1640984, 2051230, 4102460, 8204920]

約数ペア:

[(1, 8204920), (2, 4102460), (4, 2051230), (5, 1640984), (8, 1025615), (10, 820492), (20, 410246), (40, 205123), (41, 200120), (82, 100060), (164, 50030), (205, 40024), (328, 25015), (410, 20012), (820, 10006), (1640, 5003)]