20020480

素因数分解:

$2^8\times 5^1\times {\mathrm{15641}}^1$

素因数の和:15662

約数の個数: 36

約数和(自身を含む): 47958372

約数和(自身を除く): 27937892

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 15641, 31282, 62564, 78205, 125128, 156410, 250256, 312820, 500512, 625640, 1001024, 1251280, 2002048, 2502560, 4004096, 5005120, 10010240, 20020480]

約数ペア:

[(1, 20020480), (2, 10010240), (4, 5005120), (5, 4004096), (8, 2502560), (10, 2002048), (16, 1251280), (20, 1001024), (32, 625640), (40, 500512), (64, 312820), (80, 250256), (128, 156410), (160, 125128), (256, 78205), (320, 62564), (640, 31282), (1280, 15641)]