20402816

素因数分解:

$2^7\times 7^2\times {\mathrm{3253}}^1$

素因数の和:3281

約数の個数: 48

約数和(自身を含む): 47296890

約数和(自身を除く): 26894074

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 98, 112, 128, 196, 224, 392, 448, 784, 896, 1568, 3136, 3253, 6272, 6506, 13012, 22771, 26024, 45542, 52048, 91084, 104096, 159397, 182168, 208192, 318794, 364336, 416384, 637588, 728672, 1275176, 1457344, 2550352, 2914688, 5100704, 10201408, 20402816]

約数ペア:

[(1, 20402816), (2, 10201408), (4, 5100704), (7, 2914688), (8, 2550352), (14, 1457344), (16, 1275176), (28, 728672), (32, 637588), (49, 416384), (56, 364336), (64, 318794), (98, 208192), (112, 182168), (128, 159397), (196, 104096), (224, 91084), (392, 52048), (448, 45542), (784, 26024), (896, 22771), (1568, 13012), (3136, 6506), (3253, 6272)]