20280568

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^2\times {\mathrm{41}}^1\times {\mathrm{73}}^1$

素因数の和:149

約数の個数: 96

約数和(自身を含む): 49603680

約数和(自身を除く): 29323112

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 41, 44, 56, 73, 77, 82, 88, 121, 146, 154, 164, 242, 287, 292, 308, 328, 451, 484, 511, 574, 584, 616, 803, 847, 902, 968, 1022, 1148, 1606, 1694, 1804, 2044, 2296, 2993, 3157, 3212, 3388, 3608, 4088, 4961, 5621, 5986, 6314, 6424, 6776, 8833, 9922, 11242, 11972, 12628, 17666, 19844, 20951, 22484, 23944, 25256, 32923, 34727, 35332, 39688, 41902, 44968, 61831, 65846, 69454, 70664, 83804, 123662, 131692, 138908, 167608, 230461, 247324, 263384, 277816, 362153, 460922, 494648, 724306, 921844, 1448612, 1843688, 2535071, 2897224, 5070142, 10140284, 20280568]

約数ペア:

[(1, 20280568), (2, 10140284), (4, 5070142), (7, 2897224), (8, 2535071), (11, 1843688), (14, 1448612), (22, 921844), (28, 724306), (41, 494648), (44, 460922), (56, 362153), (73, 277816), (77, 263384), (82, 247324), (88, 230461), (121, 167608), (146, 138908), (154, 131692), (164, 123662), (242, 83804), (287, 70664), (292, 69454), (308, 65846), (328, 61831), (451, 44968), (484, 41902), (511, 39688), (574, 35332), (584, 34727), (616, 32923), (803, 25256), (847, 23944), (902, 22484), (968, 20951), (1022, 19844), (1148, 17666), (1606, 12628), (1694, 11972), (1804, 11242), (2044, 9922), (2296, 8833), (2993, 6776), (3157, 6424), (3212, 6314), (3388, 5986), (3608, 5621), (4088, 4961)]