4399240

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{1009}}^1$

素因数の和:1129

約数の個数: 32

約数和(自身を含む): 9999000

約数和(自身を除く): 5599760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1009, 1090, 2018, 2180, 4036, 4360, 5045, 8072, 10090, 20180, 40360, 109981, 219962, 439924, 549905, 879848, 1099810, 2199620, 4399240]

約数ペア:

[(1, 4399240), (2, 2199620), (4, 1099810), (5, 879848), (8, 549905), (10, 439924), (20, 219962), (40, 109981), (109, 40360), (218, 20180), (436, 10090), (545, 8072), (872, 5045), (1009, 4360), (1090, 4036), (2018, 2180)]