218956912

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{720253}}^1$

素因数の和:720280

約数の個数: 20

約数和(自身を含む): 446557480

約数和(自身を除く): 227600568

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 720253, 1440506, 2881012, 5762024, 11524048, 13684807, 27369614, 54739228, 109478456, 218956912]

約数ペア:

[(1, 218956912), (2, 109478456), (4, 54739228), (8, 27369614), (16, 13684807), (19, 11524048), (38, 5762024), (76, 2881012), (152, 1440506), (304, 720253)]