78876885

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{2687}}^1$

素因数の和:2817

約数の個数: 32

約数和(自身を含む): 134184960

約数和(自身を除く): 55308075

約数列:

[1, 3, 5, 15, 19, 57, 95, 103, 285, 309, 515, 1545, 1957, 2687, 5871, 8061, 9785, 13435, 29355, 40305, 51053, 153159, 255265, 276761, 765795, 830283, 1383805, 4151415, 5258459, 15775377, 26292295, 78876885]

約数ペア:

[(1, 78876885), (3, 26292295), (5, 15775377), (15, 5258459), (19, 4151415), (57, 1383805), (95, 830283), (103, 765795), (285, 276761), (309, 255265), (515, 153159), (1545, 51053), (1957, 40305), (2687, 29355), (5871, 13435), (8061, 9785)]