80377240

素因数分解:

$2^3\times 5^1\times {\mathrm{281}}^1\times {\mathrm{7151}}^1$

素因数の和:7443

約数の個数: 32

約数和(自身を含む): 181517760

約数和(自身を除く): 101140520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 281, 562, 1124, 1405, 2248, 2810, 5620, 7151, 11240, 14302, 28604, 35755, 57208, 71510, 143020, 286040, 2009431, 4018862, 8037724, 10047155, 16075448, 20094310, 40188620, 80377240]

約数ペア:

[(1, 80377240), (2, 40188620), (4, 20094310), (5, 16075448), (8, 10047155), (10, 8037724), (20, 4018862), (40, 2009431), (281, 286040), (562, 143020), (1124, 71510), (1405, 57208), (2248, 35755), (2810, 28604), (5620, 14302), (7151, 11240)]