20406016

素因数分解:

$2^8\times {\mathrm{79}}^1\times {\mathrm{1009}}^1$

素因数の和:1104

約数の個数: 36

約数和(自身を含む): 41288800

約数和(自身を除く): 20882784

約数列:

[1, 2, 4, 8, 16, 32, 64, 79, 128, 158, 256, 316, 632, 1009, 1264, 2018, 2528, 4036, 5056, 8072, 10112, 16144, 20224, 32288, 64576, 79711, 129152, 159422, 258304, 318844, 637688, 1275376, 2550752, 5101504, 10203008, 20406016]

約数ペア:

[(1, 20406016), (2, 10203008), (4, 5101504), (8, 2550752), (16, 1275376), (32, 637688), (64, 318844), (79, 258304), (128, 159422), (158, 129152), (256, 79711), (316, 64576), (632, 32288), (1009, 20224), (1264, 16144), (2018, 10112), (2528, 8072), (4036, 5056)]