638545545

素因数分解:

$3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{5443}}^1$

素因数の和:5547

約数の個数: 64

約数和(自身を含む): 1254297600

約数和(自身を除く): 615752055

約数列:

[1, 3, 5, 9, 11, 15, 27, 33, 45, 55, 79, 99, 135, 165, 237, 297, 395, 495, 711, 869, 1185, 1485, 2133, 2607, 3555, 4345, 5443, 7821, 10665, 13035, 16329, 23463, 27215, 39105, 48987, 59873, 81645, 117315, 146961, 179619, 244935, 299365, 429997, 538857, 734805, 898095, 1289991, 1616571, 2149985, 2694285, 3869973, 4729967, 6449955, 8082855, 11609919, 14189901, 19349865, 23649835, 42569703, 58049595, 70949505, 127709109, 212848515, 638545545]

約数ペア:

[(1, 638545545), (3, 212848515), (5, 127709109), (9, 70949505), (11, 58049595), (15, 42569703), (27, 23649835), (33, 19349865), (45, 14189901), (55, 11609919), (79, 8082855), (99, 6449955), (135, 4729967), (165, 3869973), (237, 2694285), (297, 2149985), (395, 1616571), (495, 1289991), (711, 898095), (869, 734805), (1185, 538857), (1485, 429997), (2133, 299365), (2607, 244935), (3555, 179619), (4345, 146961), (5443, 117315), (7821, 81645), (10665, 59873), (13035, 48987), (16329, 39105), (23463, 27215)]