8645454940

素因数分解:

$2^2\times 5^1\times {\mathrm{1091}}^1\times {\mathrm{396217}}^1$

素因数の和:397317

約数の個数: 24

約数和(自身を含む): 18172142352

約数和(自身を除く): 9526687412

約数列:

[1, 2, 4, 5, 10, 20, 1091, 2182, 4364, 5455, 10910, 21820, 396217, 792434, 1584868, 1981085, 3962170, 7924340, 432272747, 864545494, 1729090988, 2161363735, 4322727470, 8645454940]

約数ペア:

[(1, 8645454940), (2, 4322727470), (4, 2161363735), (5, 1729090988), (10, 864545494), (20, 432272747), (1091, 7924340), (2182, 3962170), (4364, 1981085), (5455, 1584868), (10910, 792434), (21820, 396217)]