27998480

素因数分解:

$2^4\times 5^1\times {\mathrm{349981}}^1$

素因数の和:349994

約数の個数: 20

約数和(自身を含む): 65096652

約数和(自身を除く): 37098172

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 349981, 699962, 1399924, 1749905, 2799848, 3499810, 5599696, 6999620, 13999240, 27998480]

約数ペア:

[(1, 27998480), (2, 13999240), (4, 6999620), (5, 5599696), (8, 3499810), (10, 2799848), (16, 1749905), (20, 1399924), (40, 699962), (80, 349981)]