42139568

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{138617}}^1$

素因数の和:138644

約数の個数: 20

約数和(自身を含む): 85943160

約数和(自身を除く): 43803592

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 138617, 277234, 554468, 1108936, 2217872, 2633723, 5267446, 10534892, 21069784, 42139568]

約数ペア:

[(1, 42139568), (2, 21069784), (4, 10534892), (8, 5267446), (16, 2633723), (19, 2217872), (38, 1108936), (76, 554468), (152, 277234), (304, 138617)]