177816152020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{661}}^1\times {\mathrm{79589}}^1$

素因数の和:80285

約数の個数: 72

約数和(自身を含む): 404964425880

約数和(自身を除く): 227148273860

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 661, 676, 845, 1322, 1690, 2644, 3305, 3380, 6610, 8593, 13220, 17186, 34372, 42965, 79589, 85930, 111709, 159178, 171860, 223418, 318356, 397945, 446836, 558545, 795890, 1034657, 1117090, 1591780, 2069314, 2234180, 4138628, 5173285, 10346570, 13450541, 20693140, 26901082, 52608329, 53802164, 67252705, 105216658, 134505410, 210433316, 263041645, 269010820, 526083290, 683908277, 1052166580, 1367816554, 2735633108, 3419541385, 6839082770, 8890807601, 13678165540, 17781615202, 35563230404, 44454038005, 88908076010, 177816152020]

約数ペア:

[(1, 177816152020), (2, 88908076010), (4, 44454038005), (5, 35563230404), (10, 17781615202), (13, 13678165540), (20, 8890807601), (26, 6839082770), (52, 3419541385), (65, 2735633108), (130, 1367816554), (169, 1052166580), (260, 683908277), (338, 526083290), (661, 269010820), (676, 263041645), (845, 210433316), (1322, 134505410), (1690, 105216658), (2644, 67252705), (3305, 53802164), (3380, 52608329), (6610, 26901082), (8593, 20693140), (13220, 13450541), (17186, 10346570), (34372, 5173285), (42965, 4138628), (79589, 2234180), (85930, 2069314), (111709, 1591780), (159178, 1117090), (171860, 1034657), (223418, 795890), (318356, 558545), (397945, 446836)]