28315760

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{1399}}^1$

素因数の和:1446

約数の個数: 80

約数和(自身を含む): 74995200

約数和(自身を除く): 46679440

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 23, 40, 44, 46, 55, 80, 88, 92, 110, 115, 176, 184, 220, 230, 253, 368, 440, 460, 506, 880, 920, 1012, 1265, 1399, 1840, 2024, 2530, 2798, 4048, 5060, 5596, 6995, 10120, 11192, 13990, 15389, 20240, 22384, 27980, 30778, 32177, 55960, 61556, 64354, 76945, 111920, 123112, 128708, 153890, 160885, 246224, 257416, 307780, 321770, 353947, 514832, 615560, 643540, 707894, 1231120, 1287080, 1415788, 1769735, 2574160, 2831576, 3539470, 5663152, 7078940, 14157880, 28315760]

約数ペア:

[(1, 28315760), (2, 14157880), (4, 7078940), (5, 5663152), (8, 3539470), (10, 2831576), (11, 2574160), (16, 1769735), (20, 1415788), (22, 1287080), (23, 1231120), (40, 707894), (44, 643540), (46, 615560), (55, 514832), (80, 353947), (88, 321770), (92, 307780), (110, 257416), (115, 246224), (176, 160885), (184, 153890), (220, 128708), (230, 123112), (253, 111920), (368, 76945), (440, 64354), (460, 61556), (506, 55960), (880, 32177), (920, 30778), (1012, 27980), (1265, 22384), (1399, 20240), (1840, 15389), (2024, 13990), (2530, 11192), (2798, 10120), (4048, 6995), (5060, 5596)]