161779720

素因数分解:

$2^3\times 5^1\times {\mathrm{107}}^1\times {\mathrm{37799}}^1$

素因数の和:37917

約数の個数: 32

約数和(自身を含む): 367416000

約数和(自身を除く): 205636280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 107, 214, 428, 535, 856, 1070, 2140, 4280, 37799, 75598, 151196, 188995, 302392, 377990, 755980, 1511960, 4044493, 8088986, 16177972, 20222465, 32355944, 40444930, 80889860, 161779720]

約数ペア:

[(1, 161779720), (2, 80889860), (4, 40444930), (5, 32355944), (8, 20222465), (10, 16177972), (20, 8088986), (40, 4044493), (107, 1511960), (214, 755980), (428, 377990), (535, 302392), (856, 188995), (1070, 151196), (2140, 75598), (4280, 37799)]