55345520

素因数分解:

$2^4\times 5^1\times {\mathrm{491}}^1\times {\mathrm{1409}}^1$

素因数の和:1913

約数の個数: 40

約数和(自身を含む): 129031920

約数和(自身を除く): 73686400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 491, 982, 1409, 1964, 2455, 2818, 3928, 4910, 5636, 7045, 7856, 9820, 11272, 14090, 19640, 22544, 28180, 39280, 56360, 112720, 691819, 1383638, 2767276, 3459095, 5534552, 6918190, 11069104, 13836380, 27672760, 55345520]

約数ペア:

[(1, 55345520), (2, 27672760), (4, 13836380), (5, 11069104), (8, 6918190), (10, 5534552), (16, 3459095), (20, 2767276), (40, 1383638), (80, 691819), (491, 112720), (982, 56360), (1409, 39280), (1964, 28180), (2455, 22544), (2818, 19640), (3928, 14090), (4910, 11272), (5636, 9820), (7045, 7856)]