20165782952

素因数分解:

$2^3\times 7^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1\times {\mathrm{37021}}^1$

素因数の和:37242

約数の個数: 64

約数和(自身を含む): 44142071040

約数和(自身を除く): 23976288088

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 71, 137, 142, 274, 284, 497, 548, 568, 959, 994, 1096, 1918, 1988, 3836, 3976, 7672, 9727, 19454, 37021, 38908, 68089, 74042, 77816, 136178, 148084, 259147, 272356, 296168, 518294, 544712, 1036588, 2073176, 2628491, 5071877, 5256982, 10143754, 10513964, 18399437, 20287508, 21027928, 35503139, 36798874, 40575016, 71006278, 73597748, 142012556, 147195496, 284025112, 360103267, 720206534, 1440413068, 2520722869, 2880826136, 5041445738, 10082891476, 20165782952]

約数ペア:

[(1, 20165782952), (2, 10082891476), (4, 5041445738), (7, 2880826136), (8, 2520722869), (14, 1440413068), (28, 720206534), (56, 360103267), (71, 284025112), (137, 147195496), (142, 142012556), (274, 73597748), (284, 71006278), (497, 40575016), (548, 36798874), (568, 35503139), (959, 21027928), (994, 20287508), (1096, 18399437), (1918, 10513964), (1988, 10143754), (3836, 5256982), (3976, 5071877), (7672, 2628491), (9727, 2073176), (19454, 1036588), (37021, 544712), (38908, 518294), (68089, 296168), (74042, 272356), (77816, 259147), (136178, 148084)]