31266590

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^2\times {\mathrm{89}}^1$

素因数の和:201

約数の個数: 48

約数和(自身を含む): 61333200

約数和(自身を除く): 30066610

約数列:

[1, 2, 5, 10, 19, 38, 43, 86, 89, 95, 178, 190, 215, 430, 445, 817, 890, 1634, 1691, 1849, 3382, 3698, 3827, 4085, 7654, 8170, 8455, 9245, 16910, 18490, 19135, 35131, 38270, 70262, 72713, 145426, 164561, 175655, 329122, 351310, 363565, 727130, 822805, 1645610, 3126659, 6253318, 15633295, 31266590]

約数ペア:

[(1, 31266590), (2, 15633295), (5, 6253318), (10, 3126659), (19, 1645610), (38, 822805), (43, 727130), (86, 363565), (89, 351310), (95, 329122), (178, 175655), (190, 164561), (215, 145426), (430, 72713), (445, 70262), (817, 38270), (890, 35131), (1634, 19135), (1691, 18490), (1849, 16910), (3382, 9245), (3698, 8455), (3827, 8170), (4085, 7654)]