208458440

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{77783}}^1$

素因数の和:77861

約数の個数: 32

約数和(自身を含む): 476038080

約数和(自身を除く): 267579640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 268, 335, 536, 670, 1340, 2680, 77783, 155566, 311132, 388915, 622264, 777830, 1555660, 3111320, 5211461, 10422922, 20845844, 26057305, 41691688, 52114610, 104229220, 208458440]

約数ペア:

[(1, 208458440), (2, 104229220), (4, 52114610), (5, 41691688), (8, 26057305), (10, 20845844), (20, 10422922), (40, 5211461), (67, 3111320), (134, 1555660), (268, 777830), (335, 622264), (536, 388915), (670, 311132), (1340, 155566), (2680, 77783)]