82541240

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{20431}}^1$

素因数の和:20543

約数の個数: 32

約数和(自身を含む): 187565760

約数和(自身を除く): 105024520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 4040, 20431, 40862, 81724, 102155, 163448, 204310, 408620, 817240, 2063531, 4127062, 8254124, 10317655, 16508248, 20635310, 41270620, 82541240]

約数ペア:

[(1, 82541240), (2, 41270620), (4, 20635310), (5, 16508248), (8, 10317655), (10, 8254124), (20, 4127062), (40, 2063531), (101, 817240), (202, 408620), (404, 204310), (505, 163448), (808, 102155), (1010, 81724), (2020, 40862), (4040, 20431)]