390137896

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{449}}^1\times {\mathrm{6389}}^1$

素因数の和:6861

約数の個数: 32

約数和(自身を含む): 776385000

約数和(自身を除く): 386247104

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 449, 898, 1796, 3592, 6389, 7633, 12778, 15266, 25556, 30532, 51112, 61064, 108613, 217226, 434452, 868904, 2868661, 5737322, 11474644, 22949288, 48767237, 97534474, 195068948, 390137896]

約数ペア:

[(1, 390137896), (2, 195068948), (4, 97534474), (8, 48767237), (17, 22949288), (34, 11474644), (68, 5737322), (136, 2868661), (449, 868904), (898, 434452), (1796, 217226), (3592, 108613), (6389, 61064), (7633, 51112), (12778, 30532), (15266, 25556)]