81679052

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{41}}^1\times {\mathrm{421}}^1$

素因数の和:499

約数の個数: 72

約数和(自身を含む): 181635552

約数和(自身を除く): 99956500

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 41, 52, 82, 91, 164, 169, 182, 287, 338, 364, 421, 533, 574, 676, 842, 1066, 1148, 1183, 1684, 2132, 2366, 2947, 3731, 4732, 5473, 5894, 6929, 7462, 10946, 11788, 13858, 14924, 17261, 21892, 27716, 34522, 38311, 48503, 69044, 71149, 76622, 97006, 120827, 142298, 153244, 194012, 224393, 241654, 284596, 448786, 483308, 498043, 897572, 996086, 1570751, 1992172, 2917109, 3141502, 5834218, 6283004, 11668436, 20419763, 40839526, 81679052]

約数ペア:

[(1, 81679052), (2, 40839526), (4, 20419763), (7, 11668436), (13, 6283004), (14, 5834218), (26, 3141502), (28, 2917109), (41, 1992172), (52, 1570751), (82, 996086), (91, 897572), (164, 498043), (169, 483308), (182, 448786), (287, 284596), (338, 241654), (364, 224393), (421, 194012), (533, 153244), (574, 142298), (676, 120827), (842, 97006), (1066, 76622), (1148, 71149), (1183, 69044), (1684, 48503), (2132, 38311), (2366, 34522), (2947, 27716), (3731, 21892), (4732, 17261), (5473, 14924), (5894, 13858), (6929, 11788), (7462, 10946)]