20851094772

素因数分解:

$2^2\times 3^2\times {\mathrm{29}}^1\times {\mathrm{659}}^1\times {\mathrm{30307}}^1$

素因数の和:31005

約数の個数: 72

約数和(自身を含む): 54608954400

約数和(自身を除く): 33757859628

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 29, 36, 58, 87, 116, 174, 261, 348, 522, 659, 1044, 1318, 1977, 2636, 3954, 5931, 7908, 11862, 19111, 23724, 30307, 38222, 57333, 60614, 76444, 90921, 114666, 121228, 171999, 181842, 229332, 272763, 343998, 363684, 545526, 687996, 878903, 1091052, 1757806, 2636709, 3515612, 5273418, 7910127, 10546836, 15820254, 19972313, 31640508, 39944626, 59916939, 79889252, 119833878, 179750817, 239667756, 359501634, 579197077, 719003268, 1158394154, 1737591231, 2316788308, 3475182462, 5212773693, 6950364924, 10425547386, 20851094772]

約数ペア:

[(1, 20851094772), (2, 10425547386), (3, 6950364924), (4, 5212773693), (6, 3475182462), (9, 2316788308), (12, 1737591231), (18, 1158394154), (29, 719003268), (36, 579197077), (58, 359501634), (87, 239667756), (116, 179750817), (174, 119833878), (261, 79889252), (348, 59916939), (522, 39944626), (659, 31640508), (1044, 19972313), (1318, 15820254), (1977, 10546836), (2636, 7910127), (3954, 5273418), (5931, 3515612), (7908, 2636709), (11862, 1757806), (19111, 1091052), (23724, 878903), (30307, 687996), (38222, 545526), (57333, 363684), (60614, 343998), (76444, 272763), (90921, 229332), (114666, 181842), (121228, 171999)]