20090420992

素因数分解:

$2^8\times {\mathrm{78478207}}^1$

素因数の和:78478223

約数の個数: 18

約数和(自身を含む): 40102364288

約数和(自身を除く): 20011943296

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 78478207, 156956414, 313912828, 627825656, 1255651312, 2511302624, 5022605248, 10045210496, 20090420992]

約数ペア:

[(1, 20090420992), (2, 10045210496), (4, 5022605248), (8, 2511302624), (16, 1255651312), (32, 627825656), (64, 313912828), (128, 156956414), (256, 78478207)]