278325538

素因数分解:

$2^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1\times {\mathrm{239}}^1$

素因数の和:510

約数の個数: 32

約数和(自身を含む): 435456000

約数和(自身を除く): 157130462

約数列:

[1, 2, 59, 71, 118, 139, 142, 239, 278, 478, 4189, 8201, 8378, 9869, 14101, 16402, 16969, 19738, 28202, 33221, 33938, 66442, 582271, 1001171, 1164542, 1960039, 2002342, 2358691, 3920078, 4717382, 139162769, 278325538]

約数ペア:

[(1, 278325538), (2, 139162769), (59, 4717382), (71, 3920078), (118, 2358691), (139, 2002342), (142, 1960039), (239, 1164542), (278, 1001171), (478, 582271), (4189, 66442), (8201, 33938), (8378, 33221), (9869, 28202), (14101, 19738), (16402, 16969)]