6649640

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{4493}}^1$

素因数の和:4541

約数の個数: 32

約数和(自身を含む): 15369480

約数和(自身を除く): 8719840

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 4493, 8986, 17972, 22465, 35944, 44930, 89860, 166241, 179720, 332482, 664964, 831205, 1329928, 1662410, 3324820, 6649640]

約数ペア:

[(1, 6649640), (2, 3324820), (4, 1662410), (5, 1329928), (8, 831205), (10, 664964), (20, 332482), (37, 179720), (40, 166241), (74, 89860), (148, 44930), (185, 35944), (296, 22465), (370, 17972), (740, 8986), (1480, 4493)]