20797865475

素因数分解:

$3^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{1787}}^1\times {\mathrm{5351}}^1$

素因数の和:7180

約数の個数: 48

約数和(自身を含む): 35598078720

約数和(自身を除く): 14800213245

約数列:

[1, 3, 5, 15, 25, 29, 75, 87, 145, 435, 725, 1787, 2175, 5351, 5361, 8935, 16053, 26755, 26805, 44675, 51823, 80265, 133775, 134025, 155179, 155469, 259115, 401325, 465537, 775895, 777345, 1295575, 2327685, 3879475, 3886725, 9562237, 11638425, 28686711, 47811185, 143433555, 239055925, 277304873, 717167775, 831914619, 1386524365, 4159573095, 6932621825, 20797865475]

約数ペア:

[(1, 20797865475), (3, 6932621825), (5, 4159573095), (15, 1386524365), (25, 831914619), (29, 717167775), (75, 277304873), (87, 239055925), (145, 143433555), (435, 47811185), (725, 28686711), (1787, 11638425), (2175, 9562237), (5351, 3886725), (5361, 3879475), (8935, 2327685), (16053, 1295575), (26755, 777345), (26805, 775895), (44675, 465537), (51823, 401325), (80265, 259115), (133775, 155469), (134025, 155179)]