12644390

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{1619}}^1$

素因数の和:1708

約数の個数: 32

約数和(自身を含む): 25194240

約数和(自身を除く): 12549850

約数列:

[1, 2, 5, 10, 11, 22, 55, 71, 110, 142, 355, 710, 781, 1562, 1619, 3238, 3905, 7810, 8095, 16190, 17809, 35618, 89045, 114949, 178090, 229898, 574745, 1149490, 1264439, 2528878, 6322195, 12644390]

約数ペア:

[(1, 12644390), (2, 6322195), (5, 2528878), (10, 1264439), (11, 1149490), (22, 574745), (55, 229898), (71, 178090), (110, 114949), (142, 89045), (355, 35618), (710, 17809), (781, 16190), (1562, 8095), (1619, 7810), (3238, 3905)]