20720384

素因数分解:

$2^8\times {\mathrm{29}}^1\times {\mathrm{2791}}^1$

素因数の和:2836

約数の個数: 36

約数和(自身を含む): 42801360

約数和(自身を除く): 22080976

約数列:

[1, 2, 4, 8, 16, 29, 32, 58, 64, 116, 128, 232, 256, 464, 928, 1856, 2791, 3712, 5582, 7424, 11164, 22328, 44656, 80939, 89312, 161878, 178624, 323756, 357248, 647512, 714496, 1295024, 2590048, 5180096, 10360192, 20720384]

約数ペア:

[(1, 20720384), (2, 10360192), (4, 5180096), (8, 2590048), (16, 1295024), (29, 714496), (32, 647512), (58, 357248), (64, 323756), (116, 178624), (128, 161878), (232, 89312), (256, 80939), (464, 44656), (928, 22328), (1856, 11164), (2791, 7424), (3712, 5582)]