646222252

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{199}}^1\times {\mathrm{317}}^1$

素因数の和:730

約数の個数: 48

約数和(自身を含む): 1234094400

約数和(自身を除く): 587872148

約数列:

[1, 2, 4, 13, 26, 52, 197, 199, 317, 394, 398, 634, 788, 796, 1268, 2561, 2587, 4121, 5122, 5174, 8242, 10244, 10348, 16484, 39203, 62449, 63083, 78406, 124898, 126166, 156812, 249796, 252332, 509639, 811837, 820079, 1019278, 1623674, 1640158, 2038556, 3247348, 3280316, 12427351, 24854702, 49709404, 161555563, 323111126, 646222252]

約数ペア:

[(1, 646222252), (2, 323111126), (4, 161555563), (13, 49709404), (26, 24854702), (52, 12427351), (197, 3280316), (199, 3247348), (317, 2038556), (394, 1640158), (398, 1623674), (634, 1019278), (788, 820079), (796, 811837), (1268, 509639), (2561, 252332), (2587, 249796), (4121, 156812), (5122, 126166), (5174, 124898), (8242, 78406), (10244, 63083), (10348, 62449), (16484, 39203)]