131718780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{13807}}^1$

素因数の和:13875

約数の個数: 72

約数和(自身を含む): 407115072

約数和(自身を除く): 275396292

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 53, 60, 90, 106, 159, 180, 212, 265, 318, 477, 530, 636, 795, 954, 1060, 1590, 1908, 2385, 3180, 4770, 9540, 13807, 27614, 41421, 55228, 69035, 82842, 124263, 138070, 165684, 207105, 248526, 276140, 414210, 497052, 621315, 731771, 828420, 1242630, 1463542, 2195313, 2485260, 2927084, 3658855, 4390626, 6585939, 7317710, 8781252, 10976565, 13171878, 14635420, 21953130, 26343756, 32929695, 43906260, 65859390, 131718780]

約数ペア:

[(1, 131718780), (2, 65859390), (3, 43906260), (4, 32929695), (5, 26343756), (6, 21953130), (9, 14635420), (10, 13171878), (12, 10976565), (15, 8781252), (18, 7317710), (20, 6585939), (30, 4390626), (36, 3658855), (45, 2927084), (53, 2485260), (60, 2195313), (90, 1463542), (106, 1242630), (159, 828420), (180, 731771), (212, 621315), (265, 497052), (318, 414210), (477, 276140), (530, 248526), (636, 207105), (795, 165684), (954, 138070), (1060, 124263), (1590, 82842), (1908, 69035), (2385, 55228), (3180, 41421), (4770, 27614), (9540, 13807)]