201820515

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{2647}}^1$

素因数の和:2708

約数の個数: 64

約数和(自身を含む): 384362496

約数和(自身を除く): 182541981

約数列:

[1, 3, 5, 13, 15, 17, 23, 39, 51, 65, 69, 85, 115, 195, 221, 255, 299, 345, 391, 663, 897, 1105, 1173, 1495, 1955, 2647, 3315, 4485, 5083, 5865, 7941, 13235, 15249, 25415, 34411, 39705, 44999, 60881, 76245, 103233, 134997, 172055, 182643, 224995, 304405, 516165, 584987, 674985, 791453, 913215, 1034977, 1754961, 2374359, 2924935, 3104931, 3957265, 5174885, 8774805, 11871795, 13454701, 15524655, 40364103, 67273505, 201820515]

約数ペア:

[(1, 201820515), (3, 67273505), (5, 40364103), (13, 15524655), (15, 13454701), (17, 11871795), (23, 8774805), (39, 5174885), (51, 3957265), (65, 3104931), (69, 2924935), (85, 2374359), (115, 1754961), (195, 1034977), (221, 913215), (255, 791453), (299, 674985), (345, 584987), (391, 516165), (663, 304405), (897, 224995), (1105, 182643), (1173, 172055), (1495, 134997), (1955, 103233), (2647, 76245), (3315, 60881), (4485, 44999), (5083, 39705), (5865, 34411), (7941, 25415), (13235, 15249)]