1220908

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{443}}^1$

素因数の和:513

約数の個数: 24

約数和(自身を含む): 2349648

約数和(自身を除く): 1128740

約数列:

[1, 2, 4, 13, 26, 52, 53, 106, 212, 443, 689, 886, 1378, 1772, 2756, 5759, 11518, 23036, 23479, 46958, 93916, 305227, 610454, 1220908]

約数ペア:

[(1, 1220908), (2, 610454), (4, 305227), (13, 93916), (26, 46958), (52, 23479), (53, 23036), (106, 11518), (212, 5759), (443, 2756), (689, 1772), (886, 1378)]