77920640

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{17393}}^1$

素因数の和:17419

約数の個数: 64

約数和(自身を含む): 212902560

約数和(自身を除く): 134981920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 280, 320, 448, 560, 640, 896, 1120, 2240, 4480, 17393, 34786, 69572, 86965, 121751, 139144, 173930, 243502, 278288, 347860, 487004, 556576, 608755, 695720, 974008, 1113152, 1217510, 1391440, 1948016, 2226304, 2435020, 2782880, 3896032, 4870040, 5565760, 7792064, 9740080, 11131520, 15584128, 19480160, 38960320, 77920640]

約数ペア:

[(1, 77920640), (2, 38960320), (4, 19480160), (5, 15584128), (7, 11131520), (8, 9740080), (10, 7792064), (14, 5565760), (16, 4870040), (20, 3896032), (28, 2782880), (32, 2435020), (35, 2226304), (40, 1948016), (56, 1391440), (64, 1217510), (70, 1113152), (80, 974008), (112, 695720), (128, 608755), (140, 556576), (160, 487004), (224, 347860), (280, 278288), (320, 243502), (448, 173930), (560, 139144), (640, 121751), (896, 86965), (1120, 69572), (2240, 34786), (4480, 17393)]