129469180

素因数分解:

$2^2\times 5^1\times {\mathrm{641}}^1\times {\mathrm{10099}}^1$

素因数の和:10749

約数の個数: 24

約数和(自身を含む): 272336400

約数和(自身を除く): 142867220

約数列:

[1, 2, 4, 5, 10, 20, 641, 1282, 2564, 3205, 6410, 10099, 12820, 20198, 40396, 50495, 100990, 201980, 6473459, 12946918, 25893836, 32367295, 64734590, 129469180]

約数ペア:

[(1, 129469180), (2, 64734590), (4, 32367295), (5, 25893836), (10, 12946918), (20, 6473459), (641, 201980), (1282, 100990), (2564, 50495), (3205, 40396), (6410, 20198), (10099, 12820)]