51531520

素因数分解:

$2^8\times 5^1\times {\mathrm{127}}^1\times {\mathrm{317}}^1$

素因数の和:465

約数の個数: 72

約数和(自身を含む): 124798464

約数和(自身を除く): 73266944

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 127, 128, 160, 254, 256, 317, 320, 508, 634, 635, 640, 1016, 1268, 1270, 1280, 1585, 2032, 2536, 2540, 3170, 4064, 5072, 5080, 6340, 8128, 10144, 10160, 12680, 16256, 20288, 20320, 25360, 32512, 40259, 40576, 40640, 50720, 80518, 81152, 81280, 101440, 161036, 162560, 201295, 202880, 322072, 402590, 405760, 644144, 805180, 1288288, 1610360, 2576576, 3220720, 5153152, 6441440, 10306304, 12882880, 25765760, 51531520]

約数ペア:

[(1, 51531520), (2, 25765760), (4, 12882880), (5, 10306304), (8, 6441440), (10, 5153152), (16, 3220720), (20, 2576576), (32, 1610360), (40, 1288288), (64, 805180), (80, 644144), (127, 405760), (128, 402590), (160, 322072), (254, 202880), (256, 201295), (317, 162560), (320, 161036), (508, 101440), (634, 81280), (635, 81152), (640, 80518), (1016, 50720), (1268, 40640), (1270, 40576), (1280, 40259), (1585, 32512), (2032, 25360), (2536, 20320), (2540, 20288), (3170, 16256), (4064, 12680), (5072, 10160), (5080, 10144), (6340, 8128)]