54251380

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{199}}^1\times {\mathrm{317}}^1$

素因数の和:568

約数の個数: 48

約数和(自身を含む): 117532800

約数和(自身を除く): 63281420

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 199, 215, 317, 398, 430, 634, 796, 860, 995, 1268, 1585, 1990, 3170, 3980, 6340, 8557, 13631, 17114, 27262, 34228, 42785, 54524, 63083, 68155, 85570, 126166, 136310, 171140, 252332, 272620, 315415, 630830, 1261660, 2712569, 5425138, 10850276, 13562845, 27125690, 54251380]

約数ペア:

[(1, 54251380), (2, 27125690), (4, 13562845), (5, 10850276), (10, 5425138), (20, 2712569), (43, 1261660), (86, 630830), (172, 315415), (199, 272620), (215, 252332), (317, 171140), (398, 136310), (430, 126166), (634, 85570), (796, 68155), (860, 63083), (995, 54524), (1268, 42785), (1585, 34228), (1990, 27262), (3170, 17114), (3980, 13631), (6340, 8557)]