20189870025

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{262121}}^1$

素因数の和:262226

約数の個数: 48

約数和(自身を含む): 36403503360

約数和(自身を除く): 16213633335

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 79, 195, 237, 325, 395, 975, 1027, 1185, 1975, 3081, 5135, 5925, 15405, 25675, 77025, 262121, 786363, 1310605, 3407573, 3931815, 6553025, 10222719, 17037865, 19659075, 20707559, 51113595, 62122677, 85189325, 103537795, 255567975, 269198267, 310613385, 517688975, 807594801, 1345991335, 1553066925, 4037974005, 6729956675, 20189870025]

約数ペア:

[(1, 20189870025), (3, 6729956675), (5, 4037974005), (13, 1553066925), (15, 1345991335), (25, 807594801), (39, 517688975), (65, 310613385), (75, 269198267), (79, 255567975), (195, 103537795), (237, 85189325), (325, 62122677), (395, 51113595), (975, 20707559), (1027, 19659075), (1185, 17037865), (1975, 10222719), (3081, 6553025), (5135, 3931815), (5925, 3407573), (15405, 1310605), (25675, 786363), (77025, 262121)]