20859202340

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{1409}}^1\times {\mathrm{8317}}^1$

素因数の和:9824

約数の個数: 48

約数和(自身を含む): 44333276400

約数和(自身を除く): 23474074060

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1409, 1780, 2818, 5636, 7045, 8317, 14090, 16634, 28180, 33268, 41585, 83170, 125401, 166340, 250802, 501604, 627005, 740213, 1254010, 1480426, 2508020, 2960852, 3701065, 7402130, 11718653, 14804260, 23437306, 46874612, 58593265, 117186530, 234373060, 1042960117, 2085920234, 4171840468, 5214800585, 10429601170, 20859202340]

約数ペア:

[(1, 20859202340), (2, 10429601170), (4, 5214800585), (5, 4171840468), (10, 2085920234), (20, 1042960117), (89, 234373060), (178, 117186530), (356, 58593265), (445, 46874612), (890, 23437306), (1409, 14804260), (1780, 11718653), (2818, 7402130), (5636, 3701065), (7045, 2960852), (8317, 2508020), (14090, 1480426), (16634, 1254010), (28180, 740213), (33268, 627005), (41585, 501604), (83170, 250802), (125401, 166340)]