20407624

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{197}}^1\times {\mathrm{563}}^1$

素因数の和:789

約数の個数: 32

約数和(自身を含む): 40201920

約数和(自身を除く): 19794296

約数列:

[1, 2, 4, 8, 23, 46, 92, 184, 197, 394, 563, 788, 1126, 1576, 2252, 4504, 4531, 9062, 12949, 18124, 25898, 36248, 51796, 103592, 110911, 221822, 443644, 887288, 2550953, 5101906, 10203812, 20407624]

約数ペア:

[(1, 20407624), (2, 10203812), (4, 5101906), (8, 2550953), (23, 887288), (46, 443644), (92, 221822), (184, 110911), (197, 103592), (394, 51796), (563, 36248), (788, 25898), (1126, 18124), (1576, 12949), (2252, 9062), (4504, 4531)]