38661920

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^2\times {\mathrm{1997}}^1$

素因数の和:2034

約数の個数: 72

約数和(自身を含む): 100447452

約数和(自身を除く): 61785532

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 110, 121, 160, 176, 220, 242, 352, 440, 484, 605, 880, 968, 1210, 1760, 1936, 1997, 2420, 3872, 3994, 4840, 7988, 9680, 9985, 15976, 19360, 19970, 21967, 31952, 39940, 43934, 63904, 79880, 87868, 109835, 159760, 175736, 219670, 241637, 319520, 351472, 439340, 483274, 702944, 878680, 966548, 1208185, 1757360, 1933096, 2416370, 3514720, 3866192, 4832740, 7732384, 9665480, 19330960, 38661920]

約数ペア:

[(1, 38661920), (2, 19330960), (4, 9665480), (5, 7732384), (8, 4832740), (10, 3866192), (11, 3514720), (16, 2416370), (20, 1933096), (22, 1757360), (32, 1208185), (40, 966548), (44, 878680), (55, 702944), (80, 483274), (88, 439340), (110, 351472), (121, 319520), (160, 241637), (176, 219670), (220, 175736), (242, 159760), (352, 109835), (440, 87868), (484, 79880), (605, 63904), (880, 43934), (968, 39940), (1210, 31952), (1760, 21967), (1936, 19970), (1997, 19360), (2420, 15976), (3872, 9985), (3994, 9680), (4840, 7988)]