16238480

素因数分解:

$2^4\times 5^1\times {\mathrm{202981}}^1$

素因数の和:202994

約数の個数: 20

約数和(自身を含む): 37754652

約数和(自身を除く): 21516172

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 202981, 405962, 811924, 1014905, 1623848, 2029810, 3247696, 4059620, 8119240, 16238480]

約数ペア:

[(1, 16238480), (2, 8119240), (4, 4059620), (5, 3247696), (8, 2029810), (10, 1623848), (16, 1014905), (20, 811924), (40, 405962), (80, 202981)]