20920576

素因数分解:

$2^8\times {\mathrm{71}}^1\times {\mathrm{1151}}^1$

素因数の和:1238

約数の個数: 36

約数和(自身を含む): 42384384

約数和(自身を除く): 21463808

約数列:

[1, 2, 4, 8, 16, 32, 64, 71, 128, 142, 256, 284, 568, 1136, 1151, 2272, 2302, 4544, 4604, 9088, 9208, 18176, 18416, 36832, 73664, 81721, 147328, 163442, 294656, 326884, 653768, 1307536, 2615072, 5230144, 10460288, 20920576]

約数ペア:

[(1, 20920576), (2, 10460288), (4, 5230144), (8, 2615072), (16, 1307536), (32, 653768), (64, 326884), (71, 294656), (128, 163442), (142, 147328), (256, 81721), (284, 73664), (568, 36832), (1136, 18416), (1151, 18176), (2272, 9208), (2302, 9088), (4544, 4604)]