20164642708

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{225263}}^1$

素因数の和:225436

約数の個数: 48

約数和(自身を含む): 42385674240

約数和(自身を除く): 22221031532

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 92, 139, 161, 278, 322, 556, 644, 973, 1946, 3197, 3892, 6394, 12788, 22379, 44758, 89516, 225263, 450526, 901052, 1576841, 3153682, 5181049, 6307364, 10362098, 20724196, 31311557, 36267343, 62623114, 72534686, 125246228, 145069372, 219180899, 438361798, 720165811, 876723596, 1440331622, 2880663244, 5041160677, 10082321354, 20164642708]

約数ペア:

[(1, 20164642708), (2, 10082321354), (4, 5041160677), (7, 2880663244), (14, 1440331622), (23, 876723596), (28, 720165811), (46, 438361798), (92, 219180899), (139, 145069372), (161, 125246228), (278, 72534686), (322, 62623114), (556, 36267343), (644, 31311557), (973, 20724196), (1946, 10362098), (3197, 6307364), (3892, 5181049), (6394, 3153682), (12788, 1576841), (22379, 901052), (44758, 450526), (89516, 225263)]