643948672

素因数分解:

$2^7\times {\mathrm{313}}^1\times {\mathrm{16073}}^1$

素因数の和:16400

約数の個数: 32

約数和(自身を含む): 1287045180

約数和(自身を除く): 643096508

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 313, 626, 1252, 2504, 5008, 10016, 16073, 20032, 32146, 40064, 64292, 128584, 257168, 514336, 1028672, 2057344, 5030849, 10061698, 20123396, 40246792, 80493584, 160987168, 321974336, 643948672]

約数ペア:

[(1, 643948672), (2, 321974336), (4, 160987168), (8, 80493584), (16, 40246792), (32, 20123396), (64, 10061698), (128, 5030849), (313, 2057344), (626, 1028672), (1252, 514336), (2504, 257168), (5008, 128584), (10016, 64292), (16073, 40064), (20032, 32146)]