18707710

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{73}}^1\times {\mathrm{523}}^1$

素因数の和:617

約数の個数: 48

約数和(自身を含む): 39784176

約数和(自身を除く): 21076466

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 73, 98, 146, 245, 365, 490, 511, 523, 730, 1022, 1046, 2555, 2615, 3577, 3661, 5110, 5230, 7154, 7322, 17885, 18305, 25627, 35770, 36610, 38179, 51254, 76358, 128135, 190895, 256270, 267253, 381790, 534506, 1336265, 1870771, 2672530, 3741542, 9353855, 18707710]

約数ペア:

[(1, 18707710), (2, 9353855), (5, 3741542), (7, 2672530), (10, 1870771), (14, 1336265), (35, 534506), (49, 381790), (70, 267253), (73, 256270), (98, 190895), (146, 128135), (245, 76358), (365, 51254), (490, 38179), (511, 36610), (523, 35770), (730, 25627), (1022, 18305), (1046, 17885), (2555, 7322), (2615, 7154), (3577, 5230), (3661, 5110)]