28558480

素因数分解:

$2^4\times 5^1\times {\mathrm{356981}}^1$

素因数の和:356994

約数の個数: 20

約数和(自身を含む): 66398652

約数和(自身を除く): 37840172

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 356981, 713962, 1427924, 1784905, 2855848, 3569810, 5711696, 7139620, 14279240, 28558480]

約数ペア:

[(1, 28558480), (2, 14279240), (4, 7139620), (5, 5711696), (8, 3569810), (10, 2855848), (16, 1784905), (20, 1427924), (40, 713962), (80, 356981)]