81406806

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{257}}^1$

素因数の和:437

約数の個数: 64

約数和(自身を含む): 183085056

約数和(自身を除く): 101678250

約数列:

[1, 2, 3, 6, 13, 26, 31, 39, 62, 78, 93, 131, 186, 257, 262, 393, 403, 514, 771, 786, 806, 1209, 1542, 1703, 2418, 3341, 3406, 4061, 5109, 6682, 7967, 8122, 10023, 10218, 12183, 15934, 20046, 23901, 24366, 33667, 47802, 52793, 67334, 101001, 103571, 105586, 158379, 202002, 207142, 310713, 316758, 437671, 621426, 875342, 1043677, 1313013, 2087354, 2626026, 3131031, 6262062, 13567801, 27135602, 40703403, 81406806]

約数ペア:

[(1, 81406806), (2, 40703403), (3, 27135602), (6, 13567801), (13, 6262062), (26, 3131031), (31, 2626026), (39, 2087354), (62, 1313013), (78, 1043677), (93, 875342), (131, 621426), (186, 437671), (257, 316758), (262, 310713), (393, 207142), (403, 202002), (514, 158379), (771, 105586), (786, 103571), (806, 101001), (1209, 67334), (1542, 52793), (1703, 47802), (2418, 33667), (3341, 24366), (3406, 23901), (4061, 20046), (5109, 15934), (6682, 12183), (7967, 10218), (8122, 10023)]