20386275

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{103}}^1$

素因数の和:165

約数の個数: 96

約数和(自身を含む): 43330560

約数和(自身を除く): 22944285

約数列:

[1, 3, 5, 7, 13, 15, 21, 25, 29, 35, 39, 65, 75, 87, 91, 103, 105, 145, 175, 195, 203, 273, 309, 325, 377, 435, 455, 515, 525, 609, 721, 725, 975, 1015, 1131, 1339, 1365, 1545, 1885, 2163, 2175, 2275, 2575, 2639, 2987, 3045, 3605, 4017, 5075, 5655, 6695, 6825, 7725, 7917, 8961, 9373, 9425, 10815, 13195, 14935, 15225, 18025, 20085, 20909, 28119, 28275, 33475, 38831, 39585, 44805, 46865, 54075, 62727, 65975, 74675, 100425, 104545, 116493, 140595, 194155, 197925, 224025, 234325, 271817, 313635, 522725, 582465, 702975, 815451, 970775, 1359085, 1568175, 2912325, 4077255, 6795425, 20386275]

約数ペア:

[(1, 20386275), (3, 6795425), (5, 4077255), (7, 2912325), (13, 1568175), (15, 1359085), (21, 970775), (25, 815451), (29, 702975), (35, 582465), (39, 522725), (65, 313635), (75, 271817), (87, 234325), (91, 224025), (103, 197925), (105, 194155), (145, 140595), (175, 116493), (195, 104545), (203, 100425), (273, 74675), (309, 65975), (325, 62727), (377, 54075), (435, 46865), (455, 44805), (515, 39585), (525, 38831), (609, 33475), (721, 28275), (725, 28119), (975, 20909), (1015, 20085), (1131, 18025), (1339, 15225), (1365, 14935), (1545, 13195), (1885, 10815), (2163, 9425), (2175, 9373), (2275, 8961), (2575, 7917), (2639, 7725), (2987, 6825), (3045, 6695), (3605, 5655), (4017, 5075)]