78375465

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{421}}^1$

素因数の和:639

約数の個数: 64

約数和(自身を含む): 160427520

約数和(自身を除く): 82052055

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 105, 135, 189, 197, 315, 421, 591, 945, 985, 1263, 1379, 1773, 2105, 2947, 2955, 3789, 4137, 5319, 6315, 6895, 8841, 8865, 11367, 12411, 14735, 18945, 20685, 26523, 26595, 37233, 44205, 56835, 62055, 79569, 82937, 132615, 186165, 248811, 397845, 414685, 580559, 746433, 1244055, 1741677, 2239299, 2902795, 3732165, 5225031, 8708385, 11196495, 15675093, 26125155, 78375465]

約数ペア:

[(1, 78375465), (3, 26125155), (5, 15675093), (7, 11196495), (9, 8708385), (15, 5225031), (21, 3732165), (27, 2902795), (35, 2239299), (45, 1741677), (63, 1244055), (105, 746433), (135, 580559), (189, 414685), (197, 397845), (315, 248811), (421, 186165), (591, 132615), (945, 82937), (985, 79569), (1263, 62055), (1379, 56835), (1773, 44205), (2105, 37233), (2947, 26595), (2955, 26523), (3789, 20685), (4137, 18945), (5319, 14735), (6315, 12411), (6895, 11367), (8841, 8865)]