20756175

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{181}}^1$

素因数の和:344

約数の個数: 48

約数和(自身を含む): 37914240

約数和(自身を除く): 17158065

約数列:

[1, 3, 5, 11, 15, 25, 33, 55, 75, 139, 165, 181, 275, 417, 543, 695, 825, 905, 1529, 1991, 2085, 2715, 3475, 4525, 4587, 5973, 7645, 9955, 10425, 13575, 22935, 25159, 29865, 38225, 49775, 75477, 114675, 125795, 149325, 276749, 377385, 628975, 830247, 1383745, 1886925, 4151235, 6918725, 20756175]

約数ペア:

[(1, 20756175), (3, 6918725), (5, 4151235), (11, 1886925), (15, 1383745), (25, 830247), (33, 628975), (55, 377385), (75, 276749), (139, 149325), (165, 125795), (181, 114675), (275, 75477), (417, 49775), (543, 38225), (695, 29865), (825, 25159), (905, 22935), (1529, 13575), (1991, 10425), (2085, 9955), (2715, 7645), (3475, 5973), (4525, 4587)]