40216880

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{1987}}^1$

素因数の和:2034

約数の個数: 80

約数和(自身を含む): 106493184

約数和(自身を除く): 66276304

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, 1840, 1987, 2024, 2530, 3974, 4048, 5060, 7948, 9935, 10120, 15896, 19870, 20240, 21857, 31792, 39740, 43714, 45701, 79480, 87428, 91402, 109285, 158960, 174856, 182804, 218570, 228505, 349712, 365608, 437140, 457010, 502711, 731216, 874280, 914020, 1005422, 1748560, 1828040, 2010844, 2513555, 3656080, 4021688, 5027110, 8043376, 10054220, 20108440, 40216880]

約数ペア:

[(1, 40216880), (2, 20108440), (4, 10054220), (5, 8043376), (8, 5027110), (10, 4021688), (11, 3656080), (16, 2513555), (20, 2010844), (22, 1828040), (23, 1748560), (40, 1005422), (44, 914020), (46, 874280), (55, 731216), (80, 502711), (88, 457010), (92, 437140), (110, 365608), (115, 349712), (176, 228505), (184, 218570), (220, 182804), (230, 174856), (253, 158960), (368, 109285), (440, 91402), (460, 87428), (506, 79480), (880, 45701), (920, 43714), (1012, 39740), (1265, 31792), (1840, 21857), (1987, 20240), (2024, 19870), (2530, 15896), (3974, 10120), (4048, 9935), (5060, 7948)]