422720

素因数分解:

$2^6\times 5^1\times {\mathrm{1321}}^1$

素因数の和:1338

約数の個数: 28

約数和(自身を含む): 1007364

約数和(自身を除く): 584644

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 1321, 2642, 5284, 6605, 10568, 13210, 21136, 26420, 42272, 52840, 84544, 105680, 211360, 422720]

約数ペア:

[(1, 422720), (2, 211360), (4, 105680), (5, 84544), (8, 52840), (10, 42272), (16, 26420), (20, 21136), (32, 13210), (40, 10568), (64, 6605), (80, 5284), (160, 2642), (320, 1321)]