128389724

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{6949}}^1$

素因数の和:7133

約数の個数: 24

約数和(自身を含む): 233520000

約数和(自身を除く): 105130276

約数列:

[1, 2, 4, 31, 62, 124, 149, 298, 596, 4619, 6949, 9238, 13898, 18476, 27796, 215419, 430838, 861676, 1035401, 2070802, 4141604, 32097431, 64194862, 128389724]

約数ペア:

[(1, 128389724), (2, 64194862), (4, 32097431), (31, 4141604), (62, 2070802), (124, 1035401), (149, 861676), (298, 430838), (596, 215419), (4619, 27796), (6949, 18476), (9238, 13898)]