78726519

素因数分解:

$3^3\times {\mathrm{19}}^2\times {\mathrm{41}}^1\times {\mathrm{197}}^1$

素因数の和:285

約数の個数: 48

約数和(自身を含む): 126735840

約数和(自身を除く): 48009321

約数列:

[1, 3, 9, 19, 27, 41, 57, 123, 171, 197, 361, 369, 513, 591, 779, 1083, 1107, 1773, 2337, 3249, 3743, 5319, 7011, 8077, 9747, 11229, 14801, 21033, 24231, 33687, 44403, 71117, 72693, 101061, 133209, 153463, 213351, 218079, 399627, 460389, 640053, 1381167, 1920159, 2915797, 4143501, 8747391, 26242173, 78726519]

約数ペア:

[(1, 78726519), (3, 26242173), (9, 8747391), (19, 4143501), (27, 2915797), (41, 1920159), (57, 1381167), (123, 640053), (171, 460389), (197, 399627), (361, 218079), (369, 213351), (513, 153463), (591, 133209), (779, 101061), (1083, 72693), (1107, 71117), (1773, 44403), (2337, 33687), (3249, 24231), (3743, 21033), (5319, 14801), (7011, 11229), (8077, 9747)]