20756480

素因数分解:

$2^{11}\times 5^1\times {\mathrm{2027}}^1$

素因数の和:2054

約数の個数: 48

約数和(自身を含む): 49827960

約数和(自身を除く): 29071480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2027, 2048, 2560, 4054, 5120, 8108, 10135, 10240, 16216, 20270, 32432, 40540, 64864, 81080, 129728, 162160, 259456, 324320, 518912, 648640, 1037824, 1297280, 2075648, 2594560, 4151296, 5189120, 10378240, 20756480]

約数ペア:

[(1, 20756480), (2, 10378240), (4, 5189120), (5, 4151296), (8, 2594560), (10, 2075648), (16, 1297280), (20, 1037824), (32, 648640), (40, 518912), (64, 324320), (80, 259456), (128, 162160), (160, 129728), (256, 81080), (320, 64864), (512, 40540), (640, 32432), (1024, 20270), (1280, 16216), (2027, 10240), (2048, 10135), (2560, 8108), (4054, 5120)]