87312640

素因数分解:

$2^8\times 5^1\times {\mathrm{68213}}^1$

素因数の和:68234

約数の個数: 36

約数和(自身を含む): 209144124

約数和(自身を除く): 121831484

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 68213, 136426, 272852, 341065, 545704, 682130, 1091408, 1364260, 2182816, 2728520, 4365632, 5457040, 8731264, 10914080, 17462528, 21828160, 43656320, 87312640]

約数ペア:

[(1, 87312640), (2, 43656320), (4, 21828160), (5, 17462528), (8, 10914080), (10, 8731264), (16, 5457040), (20, 4365632), (32, 2728520), (40, 2182816), (64, 1364260), (80, 1091408), (128, 682130), (160, 545704), (256, 341065), (320, 272852), (640, 136426), (1280, 68213)]