51252560

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{317}}^1$

素因数の和:420

約数の個数: 80

約数和(自身を含む): 124920576

約数和(自身を除く): 73668016

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 47, 80, 86, 94, 172, 188, 215, 235, 317, 344, 376, 430, 470, 634, 688, 752, 860, 940, 1268, 1585, 1720, 1880, 2021, 2536, 3170, 3440, 3760, 4042, 5072, 6340, 8084, 10105, 12680, 13631, 14899, 16168, 20210, 25360, 27262, 29798, 32336, 40420, 54524, 59596, 68155, 74495, 80840, 109048, 119192, 136310, 148990, 161680, 218096, 238384, 272620, 297980, 545240, 595960, 640657, 1090480, 1191920, 1281314, 2562628, 3203285, 5125256, 6406570, 10250512, 12813140, 25626280, 51252560]

約数ペア:

[(1, 51252560), (2, 25626280), (4, 12813140), (5, 10250512), (8, 6406570), (10, 5125256), (16, 3203285), (20, 2562628), (40, 1281314), (43, 1191920), (47, 1090480), (80, 640657), (86, 595960), (94, 545240), (172, 297980), (188, 272620), (215, 238384), (235, 218096), (317, 161680), (344, 148990), (376, 136310), (430, 119192), (470, 109048), (634, 80840), (688, 74495), (752, 68155), (860, 59596), (940, 54524), (1268, 40420), (1585, 32336), (1720, 29798), (1880, 27262), (2021, 25360), (2536, 20210), (3170, 16168), (3440, 14899), (3760, 13631), (4042, 12680), (5072, 10105), (6340, 8084)]