89999240

素因数分解:

$2^3\times 5^1\times {\mathrm{2249981}}^1$

素因数の和:2249992

約数の個数: 16

約数和(自身を含む): 202498380

約数和(自身を除く): 112499140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2249981, 4499962, 8999924, 11249905, 17999848, 22499810, 44999620, 89999240]

約数ペア:

[(1, 89999240), (2, 44999620), (4, 22499810), (5, 17999848), (8, 11249905), (10, 8999924), (20, 4499962), (40, 2249981)]