181931520

素因数分解:

$2^9\times 3^1\times 5^1\times {\mathrm{23689}}^1$

素因数の和:23715

約数の個数: 80

約数和(自身を含む): 581636880

約数和(自身を除く): 399705360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 256, 320, 384, 480, 512, 640, 768, 960, 1280, 1536, 1920, 2560, 3840, 7680, 23689, 47378, 71067, 94756, 118445, 142134, 189512, 236890, 284268, 355335, 379024, 473780, 568536, 710670, 758048, 947560, 1137072, 1421340, 1516096, 1895120, 2274144, 2842680, 3032192, 3790240, 4548288, 5685360, 6064384, 7580480, 9096576, 11370720, 12128768, 15160960, 18193152, 22741440, 30321920, 36386304, 45482880, 60643840, 90965760, 181931520]

約数ペア:

[(1, 181931520), (2, 90965760), (3, 60643840), (4, 45482880), (5, 36386304), (6, 30321920), (8, 22741440), (10, 18193152), (12, 15160960), (15, 12128768), (16, 11370720), (20, 9096576), (24, 7580480), (30, 6064384), (32, 5685360), (40, 4548288), (48, 3790240), (60, 3032192), (64, 2842680), (80, 2274144), (96, 1895120), (120, 1516096), (128, 1421340), (160, 1137072), (192, 947560), (240, 758048), (256, 710670), (320, 568536), (384, 473780), (480, 379024), (512, 355335), (640, 284268), (768, 236890), (960, 189512), (1280, 142134), (1536, 118445), (1920, 94756), (2560, 71067), (3840, 47378), (7680, 23689)]