213894280

素因数分解:

$2^3\times 5^1\times {\mathrm{457}}^1\times {\mathrm{11701}}^1$

素因数の和:12169

約数の個数: 32

約数和(自身を含む): 482356440

約数和(自身を除く): 268462160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 457, 914, 1828, 2285, 3656, 4570, 9140, 11701, 18280, 23402, 46804, 58505, 93608, 117010, 234020, 468040, 5347357, 10694714, 21389428, 26736785, 42778856, 53473570, 106947140, 213894280]

約数ペア:

[(1, 213894280), (2, 106947140), (4, 53473570), (5, 42778856), (8, 26736785), (10, 21389428), (20, 10694714), (40, 5347357), (457, 468040), (914, 234020), (1828, 117010), (2285, 93608), (3656, 58505), (4570, 46804), (9140, 23402), (11701, 18280)]