78648208

素因数分解:

$2^4\times {\mathrm{131}}^1\times {\mathrm{157}}^1\times {\mathrm{239}}^1$

素因数の和:535

約数の個数: 40

約数和(自身を含む): 155168640

約数和(自身を除く): 76520432

約数列:

[1, 2, 4, 8, 16, 131, 157, 239, 262, 314, 478, 524, 628, 956, 1048, 1256, 1912, 2096, 2512, 3824, 20567, 31309, 37523, 41134, 62618, 75046, 82268, 125236, 150092, 164536, 250472, 300184, 329072, 500944, 600368, 4915513, 9831026, 19662052, 39324104, 78648208]

約数ペア:

[(1, 78648208), (2, 39324104), (4, 19662052), (8, 9831026), (16, 4915513), (131, 600368), (157, 500944), (239, 329072), (262, 300184), (314, 250472), (478, 164536), (524, 150092), (628, 125236), (956, 82268), (1048, 75046), (1256, 62618), (1912, 41134), (2096, 37523), (2512, 31309), (3824, 20567)]