80570740

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{98257}}^1$

素因数の和:98307

約数の個数: 24

約数和(自身を含む): 173327112

約数和(自身を除く): 92756372

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 98257, 196514, 393028, 491285, 982570, 1965140, 4028537, 8057074, 16114148, 20142685, 40285370, 80570740]

約数ペア:

[(1, 80570740), (2, 40285370), (4, 20142685), (5, 16114148), (10, 8057074), (20, 4028537), (41, 1965140), (82, 982570), (164, 491285), (205, 393028), (410, 196514), (820, 98257)]