11778860

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{223}}^1$

素因数の和:390

約数の個数: 48

約数和(自身を含む): 26342400

約数和(自身を除く): 14563540

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 139, 190, 223, 278, 380, 446, 556, 695, 892, 1115, 1390, 2230, 2641, 2780, 4237, 4460, 5282, 8474, 10564, 13205, 16948, 21185, 26410, 30997, 42370, 52820, 61994, 84740, 123988, 154985, 309970, 588943, 619940, 1177886, 2355772, 2944715, 5889430, 11778860]

約数ペア:

[(1, 11778860), (2, 5889430), (4, 2944715), (5, 2355772), (10, 1177886), (19, 619940), (20, 588943), (38, 309970), (76, 154985), (95, 123988), (139, 84740), (190, 61994), (223, 52820), (278, 42370), (380, 30997), (446, 26410), (556, 21185), (695, 16948), (892, 13205), (1115, 10564), (1390, 8474), (2230, 5282), (2641, 4460), (2780, 4237)]