20457290

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{17191}}^1$

素因数の和:17222

約数の個数: 32

約数和(自身を含む): 44561664

約数和(自身を除く): 24104374

約数列:

[1, 2, 5, 7, 10, 14, 17, 34, 35, 70, 85, 119, 170, 238, 595, 1190, 17191, 34382, 85955, 120337, 171910, 240674, 292247, 584494, 601685, 1203370, 1461235, 2045729, 2922470, 4091458, 10228645, 20457290]

約数ペア:

[(1, 20457290), (2, 10228645), (5, 4091458), (7, 2922470), (10, 2045729), (14, 1461235), (17, 1203370), (34, 601685), (35, 584494), (70, 292247), (85, 240674), (119, 171910), (170, 120337), (238, 85955), (595, 34382), (1190, 17191)]