27556780

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{107}}^1\times {\mathrm{163}}^1$

素因数の和:358

約数の個数: 48

約数和(自身を含む): 59512320

約数和(自身を除く): 31955540

約数列:

[1, 2, 4, 5, 10, 20, 79, 107, 158, 163, 214, 316, 326, 395, 428, 535, 652, 790, 815, 1070, 1580, 1630, 2140, 3260, 8453, 12877, 16906, 17441, 25754, 33812, 34882, 42265, 51508, 64385, 69764, 84530, 87205, 128770, 169060, 174410, 257540, 348820, 1377839, 2755678, 5511356, 6889195, 13778390, 27556780]

約数ペア:

[(1, 27556780), (2, 13778390), (4, 6889195), (5, 5511356), (10, 2755678), (20, 1377839), (79, 348820), (107, 257540), (158, 174410), (163, 169060), (214, 128770), (316, 87205), (326, 84530), (395, 69764), (428, 64385), (535, 51508), (652, 42265), (790, 34882), (815, 33812), (1070, 25754), (1580, 17441), (1630, 16906), (2140, 12877), (3260, 8453)]