20804512

素因数分解:

$2^5\times {\mathrm{23}}^2\times {\mathrm{1229}}^1$

素因数の和:1285

約数の個数: 36

約数和(自身を含む): 42851970

約数和(自身を除く): 22047458

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 92, 184, 368, 529, 736, 1058, 1229, 2116, 2458, 4232, 4916, 8464, 9832, 16928, 19664, 28267, 39328, 56534, 113068, 226136, 452272, 650141, 904544, 1300282, 2600564, 5201128, 10402256, 20804512]

約数ペア:

[(1, 20804512), (2, 10402256), (4, 5201128), (8, 2600564), (16, 1300282), (23, 904544), (32, 650141), (46, 452272), (92, 226136), (184, 113068), (368, 56534), (529, 39328), (736, 28267), (1058, 19664), (1229, 16928), (2116, 9832), (2458, 8464), (4232, 4916)]