231131745

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{127}}^1$

素因数の和:232

約数の個数: 128

約数和(自身を含む): 479969280

約数和(自身を除く): 248837535

約数列:

[1, 3, 5, 9, 13, 15, 17, 27, 39, 45, 51, 61, 65, 85, 117, 127, 135, 153, 183, 195, 221, 255, 305, 351, 381, 459, 549, 585, 635, 663, 765, 793, 915, 1037, 1105, 1143, 1647, 1651, 1755, 1905, 1989, 2159, 2295, 2379, 2745, 3111, 3315, 3429, 3965, 4953, 5185, 5715, 5967, 6477, 7137, 7747, 8235, 8255, 9333, 9945, 10795, 11895, 13481, 14859, 15555, 17145, 19431, 21411, 23241, 24765, 27999, 28067, 29835, 32385, 35685, 38735, 40443, 44577, 46665, 58293, 67405, 69723, 74295, 84201, 97155, 100711, 107055, 116205, 121329, 131699, 139995, 140335, 202215, 209169, 222885, 252603, 291465, 302133, 348615, 363987, 395097, 421005, 503555, 606645, 658495, 757809, 906399, 1045845, 1185291, 1263015, 1510665, 1712087, 1819935, 1975485, 2719197, 3555873, 3789045, 4531995, 5136261, 5926455, 8560435, 13595985, 15408783, 17779365, 25681305, 46226349, 77043915, 231131745]

約数ペア:

[(1, 231131745), (3, 77043915), (5, 46226349), (9, 25681305), (13, 17779365), (15, 15408783), (17, 13595985), (27, 8560435), (39, 5926455), (45, 5136261), (51, 4531995), (61, 3789045), (65, 3555873), (85, 2719197), (117, 1975485), (127, 1819935), (135, 1712087), (153, 1510665), (183, 1263015), (195, 1185291), (221, 1045845), (255, 906399), (305, 757809), (351, 658495), (381, 606645), (459, 503555), (549, 421005), (585, 395097), (635, 363987), (663, 348615), (765, 302133), (793, 291465), (915, 252603), (1037, 222885), (1105, 209169), (1143, 202215), (1647, 140335), (1651, 139995), (1755, 131699), (1905, 121329), (1989, 116205), (2159, 107055), (2295, 100711), (2379, 97155), (2745, 84201), (3111, 74295), (3315, 69723), (3429, 67405), (3965, 58293), (4953, 46665), (5185, 44577), (5715, 40443), (5967, 38735), (6477, 35685), (7137, 32385), (7747, 29835), (8235, 28067), (8255, 27999), (9333, 24765), (9945, 23241), (10795, 21411), (11895, 19431), (13481, 17145), (14859, 15555)]