20386320

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{173}}^1\times {\mathrm{491}}^1$

素因数の和:680

約数の個数: 80

約数和(自身を含む): 63692352

約数和(自身を除く): 43306032

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, 491, 519, 692, 865, 982, 1038, 1384, 1473, 1730, 1964, 2076, 2455, 2595, 2768, 2946, 3460, 3928, 4152, 4910, 5190, 5892, 6920, 7365, 7856, 8304, 9820, 10380, 11784, 13840, 14730, 19640, 20760, 23568, 29460, 39280, 41520, 58920, 84943, 117840, 169886, 254829, 339772, 424715, 509658, 679544, 849430, 1019316, 1274145, 1359088, 1698860, 2038632, 2548290, 3397720, 4077264, 5096580, 6795440, 10193160, 20386320]

約数ペア:

[(1, 20386320), (2, 10193160), (3, 6795440), (4, 5096580), (5, 4077264), (6, 3397720), (8, 2548290), (10, 2038632), (12, 1698860), (15, 1359088), (16, 1274145), (20, 1019316), (24, 849430), (30, 679544), (40, 509658), (48, 424715), (60, 339772), (80, 254829), (120, 169886), (173, 117840), (240, 84943), (346, 58920), (491, 41520), (519, 39280), (692, 29460), (865, 23568), (982, 20760), (1038, 19640), (1384, 14730), (1473, 13840), (1730, 11784), (1964, 10380), (2076, 9820), (2455, 8304), (2595, 7856), (2768, 7365), (2946, 6920), (3460, 5892), (3928, 5190), (4152, 4910)]