38990128

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{128257}}^1$

素因数の和:128284

約数の個数: 20

約数和(自身を含む): 79519960

約数和(自身を除く): 40529832

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 128257, 256514, 513028, 1026056, 2052112, 2436883, 4873766, 9747532, 19495064, 38990128]

約数ペア:

[(1, 38990128), (2, 19495064), (4, 9747532), (8, 4873766), (16, 2436883), (19, 2052112), (38, 1026056), (76, 513028), (152, 256514), (304, 128257)]