28242825

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{349}}^1$

素因数の和:458

約数の個数: 48

約数和(自身を含む): 51038400

約数和(自身を除く): 22795575

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 83, 195, 249, 325, 349, 415, 975, 1047, 1079, 1245, 1745, 2075, 3237, 4537, 5235, 5395, 6225, 8725, 13611, 16185, 22685, 26175, 26975, 28967, 68055, 80925, 86901, 113425, 144835, 340275, 376571, 434505, 724175, 1129713, 1882855, 2172525, 5648565, 9414275, 28242825]

約数ペア:

[(1, 28242825), (3, 9414275), (5, 5648565), (13, 2172525), (15, 1882855), (25, 1129713), (39, 724175), (65, 434505), (75, 376571), (83, 340275), (195, 144835), (249, 113425), (325, 86901), (349, 80925), (415, 68055), (975, 28967), (1047, 26975), (1079, 26175), (1245, 22685), (1745, 16185), (2075, 13611), (3237, 8725), (4537, 6225), (5235, 5395)]