12678820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{8233}}^1$

素因数の和:8260

約数の個数: 48

約数和(自身を含む): 33199488

約数和(自身を除く): 20520668

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 8233, 16466, 32932, 41165, 57631, 82330, 90563, 115262, 164660, 181126, 230524, 288155, 362252, 452815, 576310, 633941, 905630, 1152620, 1267882, 1811260, 2535764, 3169705, 6339410, 12678820]

約数ペア:

[(1, 12678820), (2, 6339410), (4, 3169705), (5, 2535764), (7, 1811260), (10, 1267882), (11, 1152620), (14, 905630), (20, 633941), (22, 576310), (28, 452815), (35, 362252), (44, 288155), (55, 230524), (70, 181126), (77, 164660), (110, 115262), (140, 90563), (154, 82330), (220, 57631), (308, 41165), (385, 32932), (770, 16466), (1540, 8233)]