19802550

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{97}}^1\times {\mathrm{1361}}^1$

素因数の和:1473

約数の個数: 48

約数和(自身を含む): 49653072

約数和(自身を除く): 29850522

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 75, 97, 150, 194, 291, 485, 582, 970, 1361, 1455, 2425, 2722, 2910, 4083, 4850, 6805, 7275, 8166, 13610, 14550, 20415, 34025, 40830, 68050, 102075, 132017, 204150, 264034, 396051, 660085, 792102, 1320170, 1980255, 3300425, 3960510, 6600850, 9901275, 19802550]

約数ペア:

[(1, 19802550), (2, 9901275), (3, 6600850), (5, 3960510), (6, 3300425), (10, 1980255), (15, 1320170), (25, 792102), (30, 660085), (50, 396051), (75, 264034), (97, 204150), (150, 132017), (194, 102075), (291, 68050), (485, 40830), (582, 34025), (970, 20415), (1361, 14550), (1455, 13610), (2425, 8166), (2722, 7275), (2910, 6805), (4083, 4850)]