20046080

素因数分解:

$2^8\times 5^1\times {\mathrm{15661}}^1$

素因数の和:15682

約数の個数: 36

約数和(自身を含む): 48019692

約数和(自身を除く): 27973612

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 15661, 31322, 62644, 78305, 125288, 156610, 250576, 313220, 501152, 626440, 1002304, 1252880, 2004608, 2505760, 4009216, 5011520, 10023040, 20046080]

約数ペア:

[(1, 20046080), (2, 10023040), (4, 5011520), (5, 4009216), (8, 2505760), (10, 2004608), (16, 1252880), (20, 1002304), (32, 626440), (40, 501152), (64, 313220), (80, 250576), (128, 156610), (160, 125288), (256, 78305), (320, 62644), (640, 31322), (1280, 15661)]