19803350

素因数分解:

$2^1\times 5^2\times 7^2\times {\mathrm{59}}^1\times {\mathrm{137}}^1$

素因数の和:222

約数の個数: 72

約数和(自身を含む): 43892280

約数和(自身を除く): 24088930

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 49, 50, 59, 70, 98, 118, 137, 175, 245, 274, 295, 350, 413, 490, 590, 685, 826, 959, 1225, 1370, 1475, 1918, 2065, 2450, 2891, 2950, 3425, 4130, 4795, 5782, 6713, 6850, 8083, 9590, 10325, 13426, 14455, 16166, 20650, 23975, 28910, 33565, 40415, 47950, 56581, 67130, 72275, 80830, 113162, 144550, 167825, 202075, 282905, 335650, 396067, 404150, 565810, 792134, 1414525, 1980335, 2829050, 3960670, 9901675, 19803350]

約数ペア:

[(1, 19803350), (2, 9901675), (5, 3960670), (7, 2829050), (10, 1980335), (14, 1414525), (25, 792134), (35, 565810), (49, 404150), (50, 396067), (59, 335650), (70, 282905), (98, 202075), (118, 167825), (137, 144550), (175, 113162), (245, 80830), (274, 72275), (295, 67130), (350, 56581), (413, 47950), (490, 40415), (590, 33565), (685, 28910), (826, 23975), (959, 20650), (1225, 16166), (1370, 14455), (1475, 13426), (1918, 10325), (2065, 9590), (2450, 8083), (2891, 6850), (2950, 6713), (3425, 5782), (4130, 4795)]