12781290

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{4787}}^1$

素因数の和:4886

約数の個数: 32

約数和(自身を含む): 31026240

約数和(自身を除く): 18244950

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 89, 178, 267, 445, 534, 890, 1335, 2670, 4787, 9574, 14361, 23935, 28722, 47870, 71805, 143610, 426043, 852086, 1278129, 2130215, 2556258, 4260430, 6390645, 12781290]

約数ペア:

[(1, 12781290), (2, 6390645), (3, 4260430), (5, 2556258), (6, 2130215), (10, 1278129), (15, 852086), (30, 426043), (89, 143610), (178, 71805), (267, 47870), (445, 28722), (534, 23935), (890, 14361), (1335, 9574), (2670, 4787)]