31838480

素因数分解:

$2^4\times 5^1\times {\mathrm{397981}}^1$

素因数の和:397994

約数の個数: 20

約数和(自身を含む): 74024652

約数和(自身を除く): 42186172

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 397981, 795962, 1591924, 1989905, 3183848, 3979810, 6367696, 7959620, 15919240, 31838480]

約数ペア:

[(1, 31838480), (2, 15919240), (4, 7959620), (5, 6367696), (8, 3979810), (10, 3183848), (16, 1989905), (20, 1591924), (40, 795962), (80, 397981)]