128477890

素因数分解:

$2^1\times 5^1\times {\mathrm{709}}^1\times {\mathrm{18121}}^1$

素因数の和:18837

約数の個数: 16

約数和(自身を含む): 231599160

約数和(自身を除く): 103121270

約数列:

[1, 2, 5, 10, 709, 1418, 3545, 7090, 18121, 36242, 90605, 181210, 12847789, 25695578, 64238945, 128477890]

約数ペア:

[(1, 128477890), (2, 64238945), (5, 25695578), (10, 12847789), (709, 181210), (1418, 90605), (3545, 36242), (7090, 18121)]