81411520

素因数分解:

$2^6\times 5^1\times {\mathrm{47}}^1\times {\mathrm{5413}}^1$

素因数の和:5477

約数の個数: 56

約数和(自身を含む): 198022464

約数和(自身を除く): 116610944

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 47, 64, 80, 94, 160, 188, 235, 320, 376, 470, 752, 940, 1504, 1880, 3008, 3760, 5413, 7520, 10826, 15040, 21652, 27065, 43304, 54130, 86608, 108260, 173216, 216520, 254411, 346432, 433040, 508822, 866080, 1017644, 1272055, 1732160, 2035288, 2544110, 4070576, 5088220, 8141152, 10176440, 16282304, 20352880, 40705760, 81411520]

約数ペア:

[(1, 81411520), (2, 40705760), (4, 20352880), (5, 16282304), (8, 10176440), (10, 8141152), (16, 5088220), (20, 4070576), (32, 2544110), (40, 2035288), (47, 1732160), (64, 1272055), (80, 1017644), (94, 866080), (160, 508822), (188, 433040), (235, 346432), (320, 254411), (376, 216520), (470, 173216), (752, 108260), (940, 86608), (1504, 54130), (1880, 43304), (3008, 27065), (3760, 21652), (5413, 15040), (7520, 10826)]