57820280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{206501}}^1$

素因数の和:206519

約数の個数: 32

約数和(自身を含む): 148681440

約数和(自身を除く): 90861160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 206501, 413002, 826004, 1032505, 1445507, 1652008, 2065010, 2891014, 4130020, 5782028, 7227535, 8260040, 11564056, 14455070, 28910140, 57820280]

約数ペア:

[(1, 57820280), (2, 28910140), (4, 14455070), (5, 11564056), (7, 8260040), (8, 7227535), (10, 5782028), (14, 4130020), (20, 2891014), (28, 2065010), (35, 1652008), (40, 1445507), (56, 1032505), (70, 826004), (140, 413002), (280, 206501)]