138823040

素因数分解:

$2^7\times 5^1\times {\mathrm{216911}}^1$

素因数の和:216930

約数の個数: 32

約数和(自身を含む): 331875360

約数和(自身を除く): 193052320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 216911, 433822, 867644, 1084555, 1735288, 2169110, 3470576, 4338220, 6941152, 8676440, 13882304, 17352880, 27764608, 34705760, 69411520, 138823040]

約数ペア:

[(1, 138823040), (2, 69411520), (4, 34705760), (5, 27764608), (8, 17352880), (10, 13882304), (16, 8676440), (20, 6941152), (32, 4338220), (40, 3470576), (64, 2169110), (80, 1735288), (128, 1084555), (160, 867644), (320, 433822), (640, 216911)]