20485376

素因数分解:

$2^8\times {\mathrm{80021}}^1$

素因数の和:80037

約数の個数: 18

約数和(自身を含む): 40891242

約数和(自身を除く): 20405866

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 80021, 160042, 320084, 640168, 1280336, 2560672, 5121344, 10242688, 20485376]

約数ペア:

[(1, 20485376), (2, 10242688), (4, 5121344), (8, 2560672), (16, 1280336), (32, 640168), (64, 320084), (128, 160042), (256, 80021)]