20298544

素因数分解:

$2^4\times 7^2\times {\mathrm{17}}^1\times {\mathrm{1523}}^1$

素因数の和:1562

約数の個数: 60

約数和(自身を含む): 48472344

約数和(自身を除く): 28173800

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 34, 49, 56, 68, 98, 112, 119, 136, 196, 238, 272, 392, 476, 784, 833, 952, 1523, 1666, 1904, 3046, 3332, 6092, 6664, 10661, 12184, 13328, 21322, 24368, 25891, 42644, 51782, 74627, 85288, 103564, 149254, 170576, 181237, 207128, 298508, 362474, 414256, 597016, 724948, 1194032, 1268659, 1449896, 2537318, 2899792, 5074636, 10149272, 20298544]

約数ペア:

[(1, 20298544), (2, 10149272), (4, 5074636), (7, 2899792), (8, 2537318), (14, 1449896), (16, 1268659), (17, 1194032), (28, 724948), (34, 597016), (49, 414256), (56, 362474), (68, 298508), (98, 207128), (112, 181237), (119, 170576), (136, 149254), (196, 103564), (238, 85288), (272, 74627), (392, 51782), (476, 42644), (784, 25891), (833, 24368), (952, 21322), (1523, 13328), (1666, 12184), (1904, 10661), (3046, 6664), (3332, 6092)]