39040640

素因数分解:

$2^7\times 5^1\times {\mathrm{61001}}^1$

素因数の和:61020

約数の個数: 32

約数和(自身を含む): 93333060

約数和(自身を除く): 54292420

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 61001, 122002, 244004, 305005, 488008, 610010, 976016, 1220020, 1952032, 2440040, 3904064, 4880080, 7808128, 9760160, 19520320, 39040640]

約数ペア:

[(1, 39040640), (2, 19520320), (4, 9760160), (5, 7808128), (8, 4880080), (10, 3904064), (16, 2440040), (20, 1952032), (32, 1220020), (40, 976016), (64, 610010), (80, 488008), (128, 305005), (160, 244004), (320, 122002), (640, 61001)]