854780

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{541}}^1$

素因数の和:629

約数の個数: 24

約数和(自身を含む): 1821120

約数和(自身を除く): 966340

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 541, 790, 1082, 1580, 2164, 2705, 5410, 10820, 42739, 85478, 170956, 213695, 427390, 854780]

約数ペア:

[(1, 854780), (2, 427390), (4, 213695), (5, 170956), (10, 85478), (20, 42739), (79, 10820), (158, 5410), (316, 2705), (395, 2164), (541, 1580), (790, 1082)]