81050775

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{857}}^1$

素因数の和:980

約数の個数: 48

約数和(自身を含む): 145969824

約数和(自身を除く): 64919049

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 97, 195, 291, 325, 485, 857, 975, 1261, 1455, 2425, 2571, 3783, 4285, 6305, 7275, 11141, 12855, 18915, 21425, 31525, 33423, 55705, 64275, 83129, 94575, 167115, 249387, 278525, 415645, 835575, 1080677, 1246935, 2078225, 3242031, 5403385, 6234675, 16210155, 27016925, 81050775]

約数ペア:

[(1, 81050775), (3, 27016925), (5, 16210155), (13, 6234675), (15, 5403385), (25, 3242031), (39, 2078225), (65, 1246935), (75, 1080677), (97, 835575), (195, 415645), (291, 278525), (325, 249387), (485, 167115), (857, 94575), (975, 83129), (1261, 64275), (1455, 55705), (2425, 33423), (2571, 31525), (3783, 21425), (4285, 18915), (6305, 12855), (7275, 11141)]