164112820

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{197}}^1\times {\mathrm{1811}}^1$

素因数の和:2040

約数の個数: 48

約数和(自身を含む): 361646208

約数和(自身を除く): 197533388

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 197, 230, 394, 460, 788, 985, 1811, 1970, 3622, 3940, 4531, 7244, 9055, 9062, 18110, 18124, 22655, 36220, 41653, 45310, 83306, 90620, 166612, 208265, 356767, 416530, 713534, 833060, 1427068, 1783835, 3567670, 7135340, 8205641, 16411282, 32822564, 41028205, 82056410, 164112820]

約数ペア:

[(1, 164112820), (2, 82056410), (4, 41028205), (5, 32822564), (10, 16411282), (20, 8205641), (23, 7135340), (46, 3567670), (92, 1783835), (115, 1427068), (197, 833060), (230, 713534), (394, 416530), (460, 356767), (788, 208265), (985, 166612), (1811, 90620), (1970, 83306), (3622, 45310), (3940, 41653), (4531, 36220), (7244, 22655), (9055, 18124), (9062, 18110)]