20123821035

素因数分解:

$3^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{28573}}^1$

素因数の和:28674

約数の個数: 80

約数和(自身を含む): 37838376576

約数和(自身を除く): 17714555541

約数列:

[1, 3, 5, 9, 15, 27, 37, 45, 47, 81, 111, 135, 141, 185, 235, 333, 405, 423, 555, 705, 999, 1269, 1665, 1739, 2115, 2997, 3807, 4995, 5217, 6345, 8695, 14985, 15651, 19035, 26085, 28573, 46953, 78255, 85719, 140859, 142865, 234765, 257157, 428595, 704295, 771471, 1057201, 1285785, 1342931, 2314413, 3171603, 3857355, 4028793, 5286005, 6714655, 9514809, 11572065, 12086379, 15858015, 20143965, 28544427, 36259137, 47574045, 49688447, 60431895, 85633281, 108777411, 142722135, 149065341, 181295685, 248442235, 428166405, 447196023, 543887055, 745326705, 1341588069, 2235980115, 4024764207, 6707940345, 20123821035]

約数ペア:

[(1, 20123821035), (3, 6707940345), (5, 4024764207), (9, 2235980115), (15, 1341588069), (27, 745326705), (37, 543887055), (45, 447196023), (47, 428166405), (81, 248442235), (111, 181295685), (135, 149065341), (141, 142722135), (185, 108777411), (235, 85633281), (333, 60431895), (405, 49688447), (423, 47574045), (555, 36259137), (705, 28544427), (999, 20143965), (1269, 15858015), (1665, 12086379), (1739, 11572065), (2115, 9514809), (2997, 6714655), (3807, 5286005), (4995, 4028793), (5217, 3857355), (6345, 3171603), (8695, 2314413), (14985, 1342931), (15651, 1285785), (19035, 1057201), (26085, 771471), (28573, 704295), (46953, 428595), (78255, 257157), (85719, 234765), (140859, 142865)]