28801040

素因数分解:

$2^4\times 5^1\times {\mathrm{173}}^1\times {\mathrm{2081}}^1$

素因数の和:2267

約数の個数: 40

約数和(自身を含む): 67381848

約数和(自身を除く): 38580808

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 173, 346, 692, 865, 1384, 1730, 2081, 2768, 3460, 4162, 6920, 8324, 10405, 13840, 16648, 20810, 33296, 41620, 83240, 166480, 360013, 720026, 1440052, 1800065, 2880104, 3600130, 5760208, 7200260, 14400520, 28801040]

約数ペア:

[(1, 28801040), (2, 14400520), (4, 7200260), (5, 5760208), (8, 3600130), (10, 2880104), (16, 1800065), (20, 1440052), (40, 720026), (80, 360013), (173, 166480), (346, 83240), (692, 41620), (865, 33296), (1384, 20810), (1730, 16648), (2081, 13840), (2768, 10405), (3460, 8324), (4162, 6920)]