138131210

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{27793}}^1$

素因数の和:27878

約数の個数: 32

約数和(自身を含む): 288168192

約数和(自身を除く): 150036982

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 71, 142, 355, 497, 710, 994, 2485, 4970, 27793, 55586, 138965, 194551, 277930, 389102, 972755, 1945510, 1973303, 3946606, 9866515, 13813121, 19733030, 27626242, 69065605, 138131210]

約数ペア:

[(1, 138131210), (2, 69065605), (5, 27626242), (7, 19733030), (10, 13813121), (14, 9866515), (35, 3946606), (70, 1973303), (71, 1945510), (142, 972755), (355, 389102), (497, 277930), (710, 194551), (994, 138965), (2485, 55586), (4970, 27793)]