65646065

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1$

素因数の和:281

約数の個数: 32

約数和(自身を含む): 84851712

約数和(自身を除く): 19205647

約数列:

[1, 5, 31, 53, 61, 131, 155, 265, 305, 655, 1643, 1891, 3233, 4061, 6943, 7991, 8215, 9455, 16165, 20305, 34715, 39955, 100223, 215233, 247721, 423523, 501115, 1076165, 1238605, 2117615, 13129213, 65646065]

約数ペア:

[(1, 65646065), (5, 13129213), (31, 2117615), (53, 1238605), (61, 1076165), (131, 501115), (155, 423523), (265, 247721), (305, 215233), (655, 100223), (1643, 39955), (1891, 34715), (3233, 20305), (4061, 16165), (6943, 9455), (7991, 8215)]