16205440

素因数分解:

$2^7\times 5^1\times {\mathrm{25321}}^1$

素因数の和:25340

約数の個数: 32

約数和(自身を含む): 38742660

約数和(自身を除く): 22537220

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 25321, 50642, 101284, 126605, 202568, 253210, 405136, 506420, 810272, 1012840, 1620544, 2025680, 3241088, 4051360, 8102720, 16205440]

約数ペア:

[(1, 16205440), (2, 8102720), (4, 4051360), (5, 3241088), (8, 2025680), (10, 1620544), (16, 1012840), (20, 810272), (32, 506420), (40, 405136), (64, 253210), (80, 202568), (128, 126605), (160, 101284), (320, 50642), (640, 25321)]