27620780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{223}}^1\times {\mathrm{563}}^1$

素因数の和:806

約数の個数: 48

約数和(自身を含む): 63673344

約数和(自身を除く): 36052564

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 223, 446, 563, 892, 1115, 1126, 2230, 2252, 2453, 2815, 4460, 4906, 5630, 6193, 9812, 11260, 12265, 12386, 24530, 24772, 30965, 49060, 61930, 123860, 125549, 251098, 502196, 627745, 1255490, 1381039, 2510980, 2762078, 5524156, 6905195, 13810390, 27620780]

約数ペア:

[(1, 27620780), (2, 13810390), (4, 6905195), (5, 5524156), (10, 2762078), (11, 2510980), (20, 1381039), (22, 1255490), (44, 627745), (55, 502196), (110, 251098), (220, 125549), (223, 123860), (446, 61930), (563, 49060), (892, 30965), (1115, 24772), (1126, 24530), (2230, 12386), (2252, 12265), (2453, 11260), (2815, 9812), (4460, 6193), (4906, 5630)]