4257920

素因数分解:

$2^7\times 5^1\times {\mathrm{6653}}^1$

素因数の和:6672

約数の個数: 32

約数和(自身を含む): 10180620

約数和(自身を除く): 5922700

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 6653, 13306, 26612, 33265, 53224, 66530, 106448, 133060, 212896, 266120, 425792, 532240, 851584, 1064480, 2128960, 4257920]

約数ペア:

[(1, 4257920), (2, 2128960), (4, 1064480), (5, 851584), (8, 532240), (10, 425792), (16, 266120), (20, 212896), (32, 133060), (40, 106448), (64, 66530), (80, 53224), (128, 33265), (160, 26612), (320, 13306), (640, 6653)]