20073490960

素因数分解:

$2^4\times 5^1\times {\mathrm{409}}^1\times {\mathrm{613493}}^1$

素因数の和:613915

約数の個数: 40

約数和(自身を含む): 46785052440

約数和(自身を除く): 26711561480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 409, 818, 1636, 2045, 3272, 4090, 6544, 8180, 16360, 32720, 613493, 1226986, 2453972, 3067465, 4907944, 6134930, 9815888, 12269860, 24539720, 49079440, 250918637, 501837274, 1003674548, 1254593185, 2007349096, 2509186370, 4014698192, 5018372740, 10036745480, 20073490960]

約数ペア:

[(1, 20073490960), (2, 10036745480), (4, 5018372740), (5, 4014698192), (8, 2509186370), (10, 2007349096), (16, 1254593185), (20, 1003674548), (40, 501837274), (80, 250918637), (409, 49079440), (818, 24539720), (1636, 12269860), (2045, 9815888), (3272, 6134930), (4090, 4907944), (6544, 3067465), (8180, 2453972), (16360, 1226986), (32720, 613493)]