5215405

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{103}}^1$

素因数の和:181

約数の個数: 32

約数和(自身を含む): 7338240

約数和(自身を除く): 2122835

約数列:

[1, 5, 13, 19, 41, 65, 95, 103, 205, 247, 515, 533, 779, 1235, 1339, 1957, 2665, 3895, 4223, 6695, 9785, 10127, 21115, 25441, 50635, 54899, 80237, 127205, 274495, 401185, 1043081, 5215405]

約数ペア:

[(1, 5215405), (5, 1043081), (13, 401185), (19, 274495), (41, 127205), (65, 80237), (95, 54899), (103, 50635), (205, 25441), (247, 21115), (515, 10127), (533, 9785), (779, 6695), (1235, 4223), (1339, 3895), (1957, 2665)]