20822272

素因数分解:

$2^8\times {\mathrm{163}}^1\times {\mathrm{499}}^1$

素因数の和:678

約数の個数: 36

約数和(自身を含む): 41902000

約数和(自身を除く): 21079728

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 163, 256, 326, 499, 652, 998, 1304, 1996, 2608, 3992, 5216, 7984, 10432, 15968, 20864, 31936, 41728, 63872, 81337, 127744, 162674, 325348, 650696, 1301392, 2602784, 5205568, 10411136, 20822272]

約数ペア:

[(1, 20822272), (2, 10411136), (4, 5205568), (8, 2602784), (16, 1301392), (32, 650696), (64, 325348), (128, 162674), (163, 127744), (256, 81337), (326, 63872), (499, 41728), (652, 31936), (998, 20864), (1304, 15968), (1996, 10432), (2608, 7984), (3992, 5216)]