4038500

素因数分解:

$2^2\times 5^3\times {\mathrm{41}}^1\times {\mathrm{197}}^1$

素因数の和:257

約数の個数: 48

約数和(自身を含む): 9081072

約数和(自身を除く): 5042572

約数列:

[1, 2, 4, 5, 10, 20, 25, 41, 50, 82, 100, 125, 164, 197, 205, 250, 394, 410, 500, 788, 820, 985, 1025, 1970, 2050, 3940, 4100, 4925, 5125, 8077, 9850, 10250, 16154, 19700, 20500, 24625, 32308, 40385, 49250, 80770, 98500, 161540, 201925, 403850, 807700, 1009625, 2019250, 4038500]

約数ペア:

[(1, 4038500), (2, 2019250), (4, 1009625), (5, 807700), (10, 403850), (20, 201925), (25, 161540), (41, 98500), (50, 80770), (82, 49250), (100, 40385), (125, 32308), (164, 24625), (197, 20500), (205, 19700), (250, 16154), (394, 10250), (410, 9850), (500, 8077), (788, 5125), (820, 4925), (985, 4100), (1025, 3940), (1970, 2050)]