81517215

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{379}}^1\times {\mathrm{1103}}^1$

素因数の和:1503

約数の個数: 32

約数和(自身を含む): 140958720

約数和(自身を除く): 59441505

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 379, 1103, 1137, 1895, 3309, 4927, 5515, 5685, 14339, 14781, 16545, 24635, 43017, 71695, 73905, 215085, 418037, 1254111, 2090185, 5434481, 6270555, 16303443, 27172405, 81517215]

約数ペア:

[(1, 81517215), (3, 27172405), (5, 16303443), (13, 6270555), (15, 5434481), (39, 2090185), (65, 1254111), (195, 418037), (379, 215085), (1103, 73905), (1137, 71695), (1895, 43017), (3309, 24635), (4927, 16545), (5515, 14781), (5685, 14339)]