20764376

素因数分解:

$2^3\times {\mathrm{71}}^1\times {\mathrm{139}}^1\times {\mathrm{263}}^1$

素因数の和:479

約数の個数: 32

約数和(自身を含む): 39916800

約数和(自身を除く): 19152424

約数列:

[1, 2, 4, 8, 71, 139, 142, 263, 278, 284, 526, 556, 568, 1052, 1112, 2104, 9869, 18673, 19738, 36557, 37346, 39476, 73114, 74692, 78952, 146228, 149384, 292456, 2595547, 5191094, 10382188, 20764376]

約数ペア:

[(1, 20764376), (2, 10382188), (4, 5191094), (8, 2595547), (71, 292456), (139, 149384), (142, 146228), (263, 78952), (278, 74692), (284, 73114), (526, 39476), (556, 37346), (568, 36557), (1052, 19738), (1112, 18673), (2104, 9869)]