138928

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{457}}^1$

素因数の和:484

約数の個数: 20

約数和(自身を含む): 283960

約数和(自身を除く): 145032

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 457, 914, 1828, 3656, 7312, 8683, 17366, 34732, 69464, 138928]

約数ペア:

[(1, 138928), (2, 69464), (4, 34732), (8, 17366), (16, 8683), (19, 7312), (38, 3656), (76, 1828), (152, 914), (304, 457)]