216595840

素因数分解:

$2^7\times 5^1\times {\mathrm{338431}}^1$

素因数の和:338450

約数の個数: 32

約数和(自身を含む): 517800960

約数和(自身を除く): 301205120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 338431, 676862, 1353724, 1692155, 2707448, 3384310, 5414896, 6768620, 10829792, 13537240, 21659584, 27074480, 43319168, 54148960, 108297920, 216595840]

約数ペア:

[(1, 216595840), (2, 108297920), (4, 54148960), (5, 43319168), (8, 27074480), (10, 21659584), (16, 13537240), (20, 10829792), (32, 6768620), (40, 5414896), (64, 3384310), (80, 2707448), (128, 1692155), (160, 1353724), (320, 676862), (640, 338431)]