20602340

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{2531}}^1$

素因数の和:2588

約数の個数: 48

約数和(自身を含む): 48492864

約数和(自身を除く): 27890524

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 37, 44, 55, 74, 110, 148, 185, 220, 370, 407, 740, 814, 1628, 2035, 2531, 4070, 5062, 8140, 10124, 12655, 25310, 27841, 50620, 55682, 93647, 111364, 139205, 187294, 278410, 374588, 468235, 556820, 936470, 1030117, 1872940, 2060234, 4120468, 5150585, 10301170, 20602340]

約数ペア:

[(1, 20602340), (2, 10301170), (4, 5150585), (5, 4120468), (10, 2060234), (11, 1872940), (20, 1030117), (22, 936470), (37, 556820), (44, 468235), (55, 374588), (74, 278410), (110, 187294), (148, 139205), (185, 111364), (220, 93647), (370, 55682), (407, 50620), (740, 27841), (814, 25310), (1628, 12655), (2035, 10124), (2531, 8140), (4070, 5062)]