20728140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{9337}}^1$

素因数の和:9386

約数の個数: 48

約数和(自身を含む): 59613792

約数和(自身を除く): 38885652

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 37, 60, 74, 111, 148, 185, 222, 370, 444, 555, 740, 1110, 2220, 9337, 18674, 28011, 37348, 46685, 56022, 93370, 112044, 140055, 186740, 280110, 345469, 560220, 690938, 1036407, 1381876, 1727345, 2072814, 3454690, 4145628, 5182035, 6909380, 10364070, 20728140]

約数ペア:

[(1, 20728140), (2, 10364070), (3, 6909380), (4, 5182035), (5, 4145628), (6, 3454690), (10, 2072814), (12, 1727345), (15, 1381876), (20, 1036407), (30, 690938), (37, 560220), (60, 345469), (74, 280110), (111, 186740), (148, 140055), (185, 112044), (222, 93370), (370, 56022), (444, 46685), (555, 37348), (740, 28011), (1110, 18674), (2220, 9337)]