164257964

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^2\times {\mathrm{173}}^1$

素因数の和:271

約数の個数: 72

約数和(自身を含む): 338652720

約数和(自身を除く): 174394756

約数列:

[1, 2, 4, 13, 19, 26, 31, 38, 52, 62, 76, 124, 173, 247, 346, 403, 494, 589, 692, 806, 961, 988, 1178, 1612, 1922, 2249, 2356, 3287, 3844, 4498, 5363, 6574, 7657, 8996, 10726, 12493, 13148, 15314, 18259, 21452, 24986, 30628, 36518, 42731, 49972, 69719, 73036, 85462, 101897, 139438, 166253, 170924, 203794, 237367, 278876, 332506, 407588, 474734, 665012, 949468, 1324661, 2161289, 2649322, 3158807, 4322578, 5298644, 6317614, 8645156, 12635228, 41064491, 82128982, 164257964]

約数ペア:

[(1, 164257964), (2, 82128982), (4, 41064491), (13, 12635228), (19, 8645156), (26, 6317614), (31, 5298644), (38, 4322578), (52, 3158807), (62, 2649322), (76, 2161289), (124, 1324661), (173, 949468), (247, 665012), (346, 474734), (403, 407588), (494, 332506), (589, 278876), (692, 237367), (806, 203794), (961, 170924), (988, 166253), (1178, 139438), (1612, 101897), (1922, 85462), (2249, 73036), (2356, 69719), (3287, 49972), (3844, 42731), (4498, 36518), (5363, 30628), (6574, 24986), (7657, 21452), (8996, 18259), (10726, 15314), (12493, 13148)]