18158980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{129707}}^1$

素因数の和:129723

約数の個数: 24

約数和(自身を含む): 43581888

約数和(自身を除く): 25422908

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 129707, 259414, 518828, 648535, 907949, 1297070, 1815898, 2594140, 3631796, 4539745, 9079490, 18158980]

約数ペア:

[(1, 18158980), (2, 9079490), (4, 4539745), (5, 3631796), (7, 2594140), (10, 1815898), (14, 1297070), (20, 907949), (28, 648535), (35, 518828), (70, 259414), (140, 129707)]