31181520

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{173}}^1\times {\mathrm{751}}^1$

素因数の和:940

約数の個数: 80

約数和(自身を含む): 97350912

約数和(自身を除く): 66169392

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 173, 240, 346, 519, 692, 751, 865, 1038, 1384, 1502, 1730, 2076, 2253, 2595, 2768, 3004, 3460, 3755, 4152, 4506, 5190, 6008, 6920, 7510, 8304, 9012, 10380, 11265, 12016, 13840, 15020, 18024, 20760, 22530, 30040, 36048, 41520, 45060, 60080, 90120, 129923, 180240, 259846, 389769, 519692, 649615, 779538, 1039384, 1299230, 1559076, 1948845, 2078768, 2598460, 3118152, 3897690, 5196920, 6236304, 7795380, 10393840, 15590760, 31181520]

約数ペア:

[(1, 31181520), (2, 15590760), (3, 10393840), (4, 7795380), (5, 6236304), (6, 5196920), (8, 3897690), (10, 3118152), (12, 2598460), (15, 2078768), (16, 1948845), (20, 1559076), (24, 1299230), (30, 1039384), (40, 779538), (48, 649615), (60, 519692), (80, 389769), (120, 259846), (173, 180240), (240, 129923), (346, 90120), (519, 60080), (692, 45060), (751, 41520), (865, 36048), (1038, 30040), (1384, 22530), (1502, 20760), (1730, 18024), (2076, 15020), (2253, 13840), (2595, 12016), (2768, 11265), (3004, 10380), (3460, 9012), (3755, 8304), (4152, 7510), (4506, 6920), (5190, 6008)]