408506168

素因数分解:

$2^3\times 7^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1\times {\mathrm{809}}^1$

素因数の和:1020

約数の個数: 64

約数和(自身を含む): 895795200

約数和(自身を除く): 487289032

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 71, 127, 142, 254, 284, 497, 508, 568, 809, 889, 994, 1016, 1618, 1778, 1988, 3236, 3556, 3976, 5663, 6472, 7112, 9017, 11326, 18034, 22652, 36068, 45304, 57439, 63119, 72136, 102743, 114878, 126238, 205486, 229756, 252476, 402073, 410972, 459512, 504952, 719201, 804146, 821944, 1438402, 1608292, 2876804, 3216584, 5753608, 7294753, 14589506, 29179012, 51063271, 58358024, 102126542, 204253084, 408506168]

約数ペア:

[(1, 408506168), (2, 204253084), (4, 102126542), (7, 58358024), (8, 51063271), (14, 29179012), (28, 14589506), (56, 7294753), (71, 5753608), (127, 3216584), (142, 2876804), (254, 1608292), (284, 1438402), (497, 821944), (508, 804146), (568, 719201), (809, 504952), (889, 459512), (994, 410972), (1016, 402073), (1618, 252476), (1778, 229756), (1988, 205486), (3236, 126238), (3556, 114878), (3976, 102743), (5663, 72136), (6472, 63119), (7112, 57439), (9017, 45304), (11326, 36068), (18034, 22652)]