20112128

素因数分解:

$2^8\times {\mathrm{251}}^1\times {\mathrm{313}}^1$

素因数の和:580

約数の個数: 36

約数和(自身を含む): 40434408

約数和(自身を除く): 20322280

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 251, 256, 313, 502, 626, 1004, 1252, 2008, 2504, 4016, 5008, 8032, 10016, 16064, 20032, 32128, 40064, 64256, 78563, 80128, 157126, 314252, 628504, 1257008, 2514016, 5028032, 10056064, 20112128]

約数ペア:

[(1, 20112128), (2, 10056064), (4, 5028032), (8, 2514016), (16, 1257008), (32, 628504), (64, 314252), (128, 157126), (251, 80128), (256, 78563), (313, 64256), (502, 40064), (626, 32128), (1004, 20032), (1252, 16064), (2008, 10016), (2504, 8032), (4016, 5008)]