255778874

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{607}}^1\times {\mathrm{853}}^1$

素因数の和:1494

約数の個数: 32

約数和(自身を含む): 436154880

約数和(自身を除く): 180376006

約数列:

[1, 2, 13, 19, 26, 38, 247, 494, 607, 853, 1214, 1706, 7891, 11089, 11533, 15782, 16207, 22178, 23066, 32414, 149929, 210691, 299858, 421382, 517771, 1035542, 6731023, 9837649, 13462046, 19675298, 127889437, 255778874]

約数ペア:

[(1, 255778874), (2, 127889437), (13, 19675298), (19, 13462046), (26, 9837649), (38, 6731023), (247, 1035542), (494, 517771), (607, 421382), (853, 299858), (1214, 210691), (1706, 149929), (7891, 32414), (11089, 23066), (11533, 22178), (15782, 16207)]