388942480

素因数分解:

$2^4\times 5^1\times {\mathrm{4861781}}^1$

素因数の和:4861794

約数の個数: 20

約数和(自身を含む): 904291452

約数和(自身を除く): 515348972

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 4861781, 9723562, 19447124, 24308905, 38894248, 48617810, 77788496, 97235620, 194471240, 388942480]

約数ペア:

[(1, 388942480), (2, 194471240), (4, 97235620), (5, 77788496), (8, 48617810), (10, 38894248), (16, 24308905), (20, 19447124), (40, 9723562), (80, 4861781)]