2019940728880

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{1123}}^1\times {\mathrm{206273}}^1$

素因数の和:207518

約数の個数: 80

約数和(自身を含む): 4743691428960

約数和(自身を除く): 2723750700080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 218, 436, 545, 872, 1090, 1123, 1744, 2180, 2246, 4360, 4492, 5615, 8720, 8984, 11230, 17968, 22460, 44920, 89840, 122407, 206273, 244814, 412546, 489628, 612035, 825092, 979256, 1031365, 1224070, 1650184, 1958512, 2062730, 2448140, 3300368, 4125460, 4896280, 8250920, 9792560, 16501840, 22483757, 44967514, 89935028, 112418785, 179870056, 224837570, 231644579, 359740112, 449675140, 463289158, 899350280, 926578316, 1158222895, 1798700560, 1853156632, 2316445790, 3706313264, 4632891580, 9265783160, 18531566320, 25249259111, 50498518222, 100997036444, 126246295555, 201994072888, 252492591110, 403988145776, 504985182220, 1009970364440, 2019940728880]

約数ペア:

[(1, 2019940728880), (2, 1009970364440), (4, 504985182220), (5, 403988145776), (8, 252492591110), (10, 201994072888), (16, 126246295555), (20, 100997036444), (40, 50498518222), (80, 25249259111), (109, 18531566320), (218, 9265783160), (436, 4632891580), (545, 3706313264), (872, 2316445790), (1090, 1853156632), (1123, 1798700560), (1744, 1158222895), (2180, 926578316), (2246, 899350280), (4360, 463289158), (4492, 449675140), (5615, 359740112), (8720, 231644579), (8984, 224837570), (11230, 179870056), (17968, 112418785), (22460, 89935028), (44920, 44967514), (89840, 22483757), (122407, 16501840), (206273, 9792560), (244814, 8250920), (412546, 4896280), (489628, 4125460), (612035, 3300368), (825092, 2448140), (979256, 2062730), (1031365, 1958512), (1224070, 1650184)]