20807841645

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{578719}}^1$

素因数の和:578794

約数の個数: 48

約数和(自身を含む): 39001098240

約数和(自身を除く): 18193256595

約数列:

[1, 3, 5, 9, 15, 17, 45, 47, 51, 85, 141, 153, 235, 255, 423, 705, 765, 799, 2115, 2397, 3995, 7191, 11985, 35955, 578719, 1736157, 2893595, 5208471, 8680785, 9838223, 26042355, 27199793, 29514669, 49191115, 81599379, 88544007, 135998965, 147573345, 244798137, 407996895, 442720035, 462396481, 1223990685, 1387189443, 2311982405, 4161568329, 6935947215, 20807841645]

約数ペア:

[(1, 20807841645), (3, 6935947215), (5, 4161568329), (9, 2311982405), (15, 1387189443), (17, 1223990685), (45, 462396481), (47, 442720035), (51, 407996895), (85, 244798137), (141, 147573345), (153, 135998965), (235, 88544007), (255, 81599379), (423, 49191115), (705, 29514669), (765, 27199793), (799, 26042355), (2115, 9838223), (2397, 8680785), (3995, 5208471), (7191, 2893595), (11985, 1736157), (35955, 578719)]