12640168

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{607}}^1$

素因数の和:769

約数の個数: 32

約数和(自身を含む): 25171200

約数和(自身を除く): 12531032

約数列:

[1, 2, 4, 8, 19, 38, 76, 137, 152, 274, 548, 607, 1096, 1214, 2428, 2603, 4856, 5206, 10412, 11533, 20824, 23066, 46132, 83159, 92264, 166318, 332636, 665272, 1580021, 3160042, 6320084, 12640168]

約数ペア:

[(1, 12640168), (2, 6320084), (4, 3160042), (8, 1580021), (19, 665272), (38, 332636), (76, 166318), (137, 92264), (152, 83159), (274, 46132), (548, 23066), (607, 20824), (1096, 11533), (1214, 10412), (2428, 5206), (2603, 4856)]