217084816

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{257}}^1$

素因数の和:440

約数の個数: 80

約数和(自身を含む): 472969728

約数和(自身を除く): 255884912

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 52, 62, 104, 124, 131, 208, 248, 257, 262, 403, 496, 514, 524, 806, 1028, 1048, 1612, 1703, 2056, 2096, 3224, 3341, 3406, 4061, 4112, 6448, 6682, 6812, 7967, 8122, 13364, 13624, 15934, 16244, 26728, 27248, 31868, 32488, 33667, 52793, 53456, 63736, 64976, 67334, 103571, 105586, 127472, 134668, 207142, 211172, 269336, 414284, 422344, 437671, 538672, 828568, 844688, 875342, 1043677, 1657136, 1750684, 2087354, 3501368, 4174708, 7002736, 8349416, 13567801, 16698832, 27135602, 54271204, 108542408, 217084816]

約数ペア:

[(1, 217084816), (2, 108542408), (4, 54271204), (8, 27135602), (13, 16698832), (16, 13567801), (26, 8349416), (31, 7002736), (52, 4174708), (62, 3501368), (104, 2087354), (124, 1750684), (131, 1657136), (208, 1043677), (248, 875342), (257, 844688), (262, 828568), (403, 538672), (496, 437671), (514, 422344), (524, 414284), (806, 269336), (1028, 211172), (1048, 207142), (1612, 134668), (1703, 127472), (2056, 105586), (2096, 103571), (3224, 67334), (3341, 64976), (3406, 63736), (4061, 53456), (4112, 52793), (6448, 33667), (6682, 32488), (6812, 31868), (7967, 27248), (8122, 26728), (13364, 16244), (13624, 15934)]