205122280

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{20269}}^1$

素因数の和:20314

約数の個数: 64

約数和(自身を含む): 525398400

約数和(自身を除く): 320276120

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 23, 40, 44, 46, 55, 88, 92, 110, 115, 184, 220, 230, 253, 440, 460, 506, 920, 1012, 1265, 2024, 2530, 5060, 10120, 20269, 40538, 81076, 101345, 162152, 202690, 222959, 405380, 445918, 466187, 810760, 891836, 932374, 1114795, 1783672, 1864748, 2229590, 2330935, 3729496, 4459180, 4661870, 5128057, 8918360, 9323740, 10256114, 18647480, 20512228, 25640285, 41024456, 51280570, 102561140, 205122280]

約数ペア:

[(1, 205122280), (2, 102561140), (4, 51280570), (5, 41024456), (8, 25640285), (10, 20512228), (11, 18647480), (20, 10256114), (22, 9323740), (23, 8918360), (40, 5128057), (44, 4661870), (46, 4459180), (55, 3729496), (88, 2330935), (92, 2229590), (110, 1864748), (115, 1783672), (184, 1114795), (220, 932374), (230, 891836), (253, 810760), (440, 466187), (460, 445918), (506, 405380), (920, 222959), (1012, 202690), (1265, 162152), (2024, 101345), (2530, 81076), (5060, 40538), (10120, 20269)]