321291256

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{1723}}^1$

素因数の和:1916

約数の個数: 64

約数和(自身を含む): 712494720

約数和(自身を除く): 391203464

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 44, 52, 88, 104, 143, 163, 286, 326, 572, 652, 1144, 1304, 1723, 1793, 2119, 3446, 3586, 4238, 6892, 7172, 8476, 13784, 14344, 16952, 18953, 22399, 23309, 37906, 44798, 46618, 75812, 89596, 93236, 151624, 179192, 186472, 246389, 280849, 492778, 561698, 985556, 1123396, 1971112, 2246792, 3089339, 3651037, 6178678, 7302074, 12357356, 14604148, 24714712, 29208296, 40161407, 80322814, 160645628, 321291256]

約数ペア:

[(1, 321291256), (2, 160645628), (4, 80322814), (8, 40161407), (11, 29208296), (13, 24714712), (22, 14604148), (26, 12357356), (44, 7302074), (52, 6178678), (88, 3651037), (104, 3089339), (143, 2246792), (163, 1971112), (286, 1123396), (326, 985556), (572, 561698), (652, 492778), (1144, 280849), (1304, 246389), (1723, 186472), (1793, 179192), (2119, 151624), (3446, 93236), (3586, 89596), (4238, 75812), (6892, 46618), (7172, 44798), (8476, 37906), (13784, 23309), (14344, 22399), (16952, 18953)]