218200220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1558573}}^1$

素因数の和:1558589

約数の個数: 24

約数和(自身を含む): 523680864

約数和(自身を除く): 305480644

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1558573, 3117146, 6234292, 7792865, 10910011, 15585730, 21820022, 31171460, 43640044, 54550055, 109100110, 218200220]

約数ペア:

[(1, 218200220), (2, 109100110), (4, 54550055), (5, 43640044), (7, 31171460), (10, 21820022), (14, 15585730), (20, 10910011), (28, 7792865), (35, 6234292), (70, 3117146), (140, 1558573)]