20080684

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{12457}}^1$

素因数の和:12505

約数の個数: 24

約数和(自身を含む): 39068288

約数和(自身を除く): 18987604

約数列:

[1, 2, 4, 13, 26, 31, 52, 62, 124, 403, 806, 1612, 12457, 24914, 49828, 161941, 323882, 386167, 647764, 772334, 1544668, 5020171, 10040342, 20080684]

約数ペア:

[(1, 20080684), (2, 10040342), (4, 5020171), (13, 1544668), (26, 772334), (31, 647764), (52, 386167), (62, 323882), (124, 161941), (403, 49828), (806, 24914), (1612, 12457)]