20085260

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{1153}}^1$

素因数の和:1242

約数の個数: 48

約数和(自身を含む): 46141536

約数和(自身を除く): 26056276

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 67, 130, 134, 260, 268, 335, 670, 871, 1153, 1340, 1742, 2306, 3484, 4355, 4612, 5765, 8710, 11530, 14989, 17420, 23060, 29978, 59956, 74945, 77251, 149890, 154502, 299780, 309004, 386255, 772510, 1004263, 1545020, 2008526, 4017052, 5021315, 10042630, 20085260]

約数ペア:

[(1, 20085260), (2, 10042630), (4, 5021315), (5, 4017052), (10, 2008526), (13, 1545020), (20, 1004263), (26, 772510), (52, 386255), (65, 309004), (67, 299780), (130, 154502), (134, 149890), (260, 77251), (268, 74945), (335, 59956), (670, 29978), (871, 23060), (1153, 17420), (1340, 14989), (1742, 11530), (2306, 8710), (3484, 5765), (4355, 4612)]