81109820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{2903}}^1$

素因数の和:3050

約数の個数: 48

約数和(自身を含む): 187342848

約数和(自身を除く): 106233028

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 127, 220, 254, 508, 635, 1270, 1397, 2540, 2794, 2903, 5588, 5806, 6985, 11612, 13970, 14515, 27940, 29030, 31933, 58060, 63866, 127732, 159665, 319330, 368681, 638660, 737362, 1474724, 1843405, 3686810, 4055491, 7373620, 8110982, 16221964, 20277455, 40554910, 81109820]

約数ペア:

[(1, 81109820), (2, 40554910), (4, 20277455), (5, 16221964), (10, 8110982), (11, 7373620), (20, 4055491), (22, 3686810), (44, 1843405), (55, 1474724), (110, 737362), (127, 638660), (220, 368681), (254, 319330), (508, 159665), (635, 127732), (1270, 63866), (1397, 58060), (2540, 31933), (2794, 29030), (2903, 27940), (5588, 14515), (5806, 13970), (6985, 11612)]