20625735

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{293}}^1$

素因数の和:352

約数の個数: 48

約数和(自身を含む): 37636704

約数和(自身を除く): 17010969

約数列:

[1, 3, 5, 13, 15, 19, 39, 57, 65, 95, 195, 247, 285, 293, 361, 741, 879, 1083, 1235, 1465, 1805, 3705, 3809, 4395, 4693, 5415, 5567, 11427, 14079, 16701, 19045, 23465, 27835, 57135, 70395, 72371, 83505, 105773, 217113, 317319, 361855, 528865, 1085565, 1375049, 1586595, 4125147, 6875245, 20625735]

約数ペア:

[(1, 20625735), (3, 6875245), (5, 4125147), (13, 1586595), (15, 1375049), (19, 1085565), (39, 528865), (57, 361855), (65, 317319), (95, 217113), (195, 105773), (247, 83505), (285, 72371), (293, 70395), (361, 57135), (741, 27835), (879, 23465), (1083, 19045), (1235, 16701), (1465, 14079), (1805, 11427), (3705, 5567), (3809, 5415), (4395, 4693)]