81520656

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{242621}}^1$

素因数の和:242639

約数の個数: 40

約数和(自身を含む): 240681024

約数和(自身を除く): 159160368

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 84, 112, 168, 336, 242621, 485242, 727863, 970484, 1455726, 1698347, 1940968, 2911452, 3396694, 3881936, 5095041, 5822904, 6793388, 10190082, 11645808, 13586776, 20380164, 27173552, 40760328, 81520656]

約数ペア:

[(1, 81520656), (2, 40760328), (3, 27173552), (4, 20380164), (6, 13586776), (7, 11645808), (8, 10190082), (12, 6793388), (14, 5822904), (16, 5095041), (21, 3881936), (24, 3396694), (28, 2911452), (42, 1940968), (48, 1698347), (56, 1455726), (84, 970484), (112, 727863), (168, 485242), (336, 242621)]