80209580

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{443}}^1\times {\mathrm{823}}^1$

素因数の和:1286

約数の個数: 48

約数和(自身を含む): 184391424

約数和(自身を除く): 104181844

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 443, 823, 886, 1646, 1772, 2215, 3292, 4115, 4430, 4873, 8230, 8860, 9053, 9746, 16460, 18106, 19492, 24365, 36212, 45265, 48730, 90530, 97460, 181060, 364589, 729178, 1458356, 1822945, 3645890, 4010479, 7291780, 8020958, 16041916, 20052395, 40104790, 80209580]

約数ペア:

[(1, 80209580), (2, 40104790), (4, 20052395), (5, 16041916), (10, 8020958), (11, 7291780), (20, 4010479), (22, 3645890), (44, 1822945), (55, 1458356), (110, 729178), (220, 364589), (443, 181060), (823, 97460), (886, 90530), (1646, 48730), (1772, 45265), (2215, 36212), (3292, 24365), (4115, 19492), (4430, 18106), (4873, 16460), (8230, 9746), (8860, 9053)]