1968640

素因数分解:

$2^9\times 5^1\times {\mathrm{769}}^1$

素因数の和:792

約数の個数: 40

約数和(自身を含む): 4726260

約数和(自身を除く): 2757620

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 769, 1280, 1538, 2560, 3076, 3845, 6152, 7690, 12304, 15380, 24608, 30760, 49216, 61520, 98432, 123040, 196864, 246080, 393728, 492160, 984320, 1968640]

約数ペア:

[(1, 1968640), (2, 984320), (4, 492160), (5, 393728), (8, 246080), (10, 196864), (16, 123040), (20, 98432), (32, 61520), (40, 49216), (64, 30760), (80, 24608), (128, 15380), (160, 12304), (256, 7690), (320, 6152), (512, 3845), (640, 3076), (769, 2560), (1280, 1538)]