399309.00000000

素因数分解:

$2^2\times 5^1\times {\mathrm{241}}^1\times {\mathrm{4139}}^1$

素因数の和:4389

約数の個数: 24

約数和(自身を含む): 42078960

約数和(自身を除く): 22128980

約数列:

[1, 2, 4, 5, 10, 20, 241, 482, 964, 1205, 2410, 4139, 4820, 8278, 16556, 20695, 41390, 82780, 997499, 1994998, 3989996, 4987495, 9974990, 19949980]

約数ペア:

[(1, 19949980), (2, 9974990), (4, 4987495), (5, 3989996), (10, 1994998), (20, 997499), (241, 82780), (482, 41390), (964, 20695), (1205, 16556), (2410, 8278), (4139, 4820)]