261311556545

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{2287}}^1\times {\mathrm{19751}}^1$

素因数の和:22145

約数の個数: 32

約数和(自身を含む): 341655874560

約数和(自身を除く): 80344318015

約数列:

[1, 5, 13, 65, 89, 445, 1157, 2287, 5785, 11435, 19751, 29731, 98755, 148655, 203543, 256763, 1017715, 1283815, 1757839, 2646059, 8789195, 13230295, 22851907, 45170537, 114259535, 225852685, 587216981, 2936084905, 4020177793, 20100888965, 52262311309, 261311556545]

約数ペア:

[(1, 261311556545), (5, 52262311309), (13, 20100888965), (65, 4020177793), (89, 2936084905), (445, 587216981), (1157, 225852685), (2287, 114259535), (5785, 45170537), (11435, 22851907), (19751, 13230295), (29731, 8789195), (98755, 2646059), (148655, 1757839), (203543, 1283815), (256763, 1017715)]