645000505

素因数分解:

$5^1\times {\mathrm{19}}^2\times {\mathrm{47}}^1\times {\mathrm{7603}}^1$

素因数の和:7693

約数の個数: 24

約数和(自身を含む): 834371712

約数和(自身を除く): 189371207

約数列:

[1, 5, 19, 47, 95, 235, 361, 893, 1805, 4465, 7603, 16967, 38015, 84835, 144457, 357341, 722285, 1786705, 2744683, 6789479, 13723415, 33947395, 129000101, 645000505]

約数ペア:

[(1, 645000505), (5, 129000101), (19, 33947395), (47, 13723415), (95, 6789479), (235, 2744683), (361, 1786705), (893, 722285), (1805, 357341), (4465, 144457), (7603, 84835), (16967, 38015)]