638021570

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{67}}^2\times {\mathrm{233}}^1$

素因数の和:435

約数の個数: 48

約数和(自身を含む): 1190033208

約数和(自身を除く): 552011638

約数列:

[1, 2, 5, 10, 61, 67, 122, 134, 233, 305, 335, 466, 610, 670, 1165, 2330, 4087, 4489, 8174, 8978, 14213, 15611, 20435, 22445, 28426, 31222, 40870, 44890, 71065, 78055, 142130, 156110, 273829, 547658, 952271, 1045937, 1369145, 1904542, 2091874, 2738290, 4761355, 5229685, 9522710, 10459370, 63802157, 127604314, 319010785, 638021570]

約数ペア:

[(1, 638021570), (2, 319010785), (5, 127604314), (10, 63802157), (61, 10459370), (67, 9522710), (122, 5229685), (134, 4761355), (233, 2738290), (305, 2091874), (335, 1904542), (466, 1369145), (610, 1045937), (670, 952271), (1165, 547658), (2330, 273829), (4087, 156110), (4489, 142130), (8174, 78055), (8978, 71065), (14213, 44890), (15611, 40870), (20435, 31222), (22445, 28426)]