51240915

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{1697}}^1$

素因数の和:1780

約数の個数: 48

約数和(自身を含む): 98538336

約数和(自身を除く): 47297421

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 61, 99, 165, 183, 305, 495, 549, 671, 915, 1697, 2013, 2745, 3355, 5091, 6039, 8485, 10065, 15273, 18667, 25455, 30195, 56001, 76365, 93335, 103517, 168003, 280005, 310551, 517585, 840015, 931653, 1138687, 1552755, 3416061, 4658265, 5693435, 10248183, 17080305, 51240915]

約数ペア:

[(1, 51240915), (3, 17080305), (5, 10248183), (9, 5693435), (11, 4658265), (15, 3416061), (33, 1552755), (45, 1138687), (55, 931653), (61, 840015), (99, 517585), (165, 310551), (183, 280005), (305, 168003), (495, 103517), (549, 93335), (671, 76365), (915, 56001), (1697, 30195), (2013, 25455), (2745, 18667), (3355, 15273), (5091, 10065), (6039, 8485)]