20322560

素因数分解:

$2^8\times 5^1\times {\mathrm{15877}}^1$

素因数の和:15898

約数の個数: 36

約数和(自身を含む): 48681948

約数和(自身を除く): 28359388

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 15877, 31754, 63508, 79385, 127016, 158770, 254032, 317540, 508064, 635080, 1016128, 1270160, 2032256, 2540320, 4064512, 5080640, 10161280, 20322560]

約数ペア:

[(1, 20322560), (2, 10161280), (4, 5080640), (5, 4064512), (8, 2540320), (10, 2032256), (16, 1270160), (20, 1016128), (32, 635080), (40, 508064), (64, 317540), (80, 254032), (128, 158770), (160, 127016), (256, 79385), (320, 63508), (640, 31754), (1280, 15877)]