397334020

素因数分解:

$2^2\times 5^1\times {\mathrm{359}}^1\times {\mathrm{55339}}^1$

素因数の和:55707

約数の個数: 24

約数和(自身を含む): 836740800

約数和(自身を除く): 439406780

約数列:

[1, 2, 4, 5, 10, 20, 359, 718, 1436, 1795, 3590, 7180, 55339, 110678, 221356, 276695, 553390, 1106780, 19866701, 39733402, 79466804, 99333505, 198667010, 397334020]

約数ペア:

[(1, 397334020), (2, 198667010), (4, 99333505), (5, 79466804), (10, 39733402), (20, 19866701), (359, 1106780), (718, 553390), (1436, 276695), (1795, 221356), (3590, 110678), (7180, 55339)]