20460260

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{643}}^1$

素因数の和:732

約数の個数: 48

約数和(自身を含む): 45224256

約数和(自身を除く): 24763996

約数列:

[1, 2, 4, 5, 10, 20, 37, 43, 74, 86, 148, 172, 185, 215, 370, 430, 643, 740, 860, 1286, 1591, 2572, 3182, 3215, 6364, 6430, 7955, 12860, 15910, 23791, 27649, 31820, 47582, 55298, 95164, 110596, 118955, 138245, 237910, 276490, 475820, 552980, 1023013, 2046026, 4092052, 5115065, 10230130, 20460260]

約数ペア:

[(1, 20460260), (2, 10230130), (4, 5115065), (5, 4092052), (10, 2046026), (20, 1023013), (37, 552980), (43, 475820), (74, 276490), (86, 237910), (148, 138245), (172, 118955), (185, 110596), (215, 95164), (370, 55298), (430, 47582), (643, 31820), (740, 27649), (860, 23791), (1286, 15910), (1591, 12860), (2572, 7955), (3182, 6430), (3215, 6364)]