20719220

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{14591}}^1$

素因数の和:14671

約数の個数: 24

約数和(自身を含む): 44126208

約数和(自身を除く): 23406988

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 14591, 29182, 58364, 72955, 145910, 291820, 1035961, 2071922, 4143844, 5179805, 10359610, 20719220]

約数ペア:

[(1, 20719220), (2, 10359610), (4, 5179805), (5, 4143844), (10, 2071922), (20, 1035961), (71, 291820), (142, 145910), (284, 72955), (355, 58364), (710, 29182), (1420, 14591)]