18215630

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{97}}^1\times {\mathrm{211}}^1$

素因数の和:404

約数の個数: 32

約数和(自身を含む): 33657120

約数和(自身を除く): 15441490

約数列:

[1, 2, 5, 10, 89, 97, 178, 194, 211, 422, 445, 485, 890, 970, 1055, 2110, 8633, 17266, 18779, 20467, 37558, 40934, 43165, 86330, 93895, 102335, 187790, 204670, 1821563, 3643126, 9107815, 18215630]

約数ペア:

[(1, 18215630), (2, 9107815), (5, 3643126), (10, 1821563), (89, 204670), (97, 187790), (178, 102335), (194, 93895), (211, 86330), (422, 43165), (445, 40934), (485, 37558), (890, 20467), (970, 18779), (1055, 17266), (2110, 8633)]