856435640

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1126889}}^1$

素因数の和:1126919

約数の個数: 32

約数和(自身を含む): 2028402000

約数和(自身を除く): 1171966360

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 1126889, 2253778, 4507556, 5634445, 9015112, 11268890, 21410891, 22537780, 42821782, 45075560, 85643564, 107054455, 171287128, 214108910, 428217820, 856435640]

約数ペア:

[(1, 856435640), (2, 428217820), (4, 214108910), (5, 171287128), (8, 107054455), (10, 85643564), (19, 45075560), (20, 42821782), (38, 22537780), (40, 21410891), (76, 11268890), (95, 9015112), (152, 5634445), (190, 4507556), (380, 2253778), (760, 1126889)]