18400690

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{1039}}^1$

素因数の和:1087

約数の個数: 64

約数和(自身を含む): 43130880

約数和(自身を除く): 24730190

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 23, 35, 46, 55, 70, 77, 110, 115, 154, 161, 230, 253, 322, 385, 506, 770, 805, 1039, 1265, 1610, 1771, 2078, 2530, 3542, 5195, 7273, 8855, 10390, 11429, 14546, 17710, 22858, 23897, 36365, 47794, 57145, 72730, 80003, 114290, 119485, 160006, 167279, 238970, 262867, 334558, 400015, 525734, 800030, 836395, 1314335, 1672790, 1840069, 2628670, 3680138, 9200345, 18400690]

約数ペア:

[(1, 18400690), (2, 9200345), (5, 3680138), (7, 2628670), (10, 1840069), (11, 1672790), (14, 1314335), (22, 836395), (23, 800030), (35, 525734), (46, 400015), (55, 334558), (70, 262867), (77, 238970), (110, 167279), (115, 160006), (154, 119485), (161, 114290), (230, 80003), (253, 72730), (322, 57145), (385, 47794), (506, 36365), (770, 23897), (805, 22858), (1039, 17710), (1265, 14546), (1610, 11429), (1771, 10390), (2078, 8855), (2530, 7273), (3542, 5195)]