155857745

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{263}}^1$

素因数の和:425

約数の個数: 32

約数和(自身を含む): 200344320

約数和(自身を除く): 44486575

約数列:

[1, 5, 29, 61, 67, 145, 263, 305, 335, 1315, 1769, 1943, 4087, 7627, 8845, 9715, 16043, 17621, 20435, 38135, 80215, 88105, 118523, 465247, 511009, 592615, 1074881, 2326235, 2555045, 5374405, 31171549, 155857745]

約数ペア:

[(1, 155857745), (5, 31171549), (29, 5374405), (61, 2555045), (67, 2326235), (145, 1074881), (263, 592615), (305, 511009), (335, 465247), (1315, 118523), (1769, 88105), (1943, 80215), (4087, 38135), (7627, 20435), (8845, 17621), (9715, 16043)]