20628756

素因数分解:

$2^2\times 3^5\times {\mathrm{19}}^1\times {\mathrm{1117}}^1$

素因数の和:1155

約数の個数: 72

約数和(自身を含む): 56973280

約数和(自身を除く): 36344524

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 27, 36, 38, 54, 57, 76, 81, 108, 114, 162, 171, 228, 243, 324, 342, 486, 513, 684, 972, 1026, 1117, 1539, 2052, 2234, 3078, 3351, 4468, 4617, 6156, 6702, 9234, 10053, 13404, 18468, 20106, 21223, 30159, 40212, 42446, 60318, 63669, 84892, 90477, 120636, 127338, 180954, 191007, 254676, 271431, 361908, 382014, 542862, 573021, 764028, 1085724, 1146042, 1719063, 2292084, 3438126, 5157189, 6876252, 10314378, 20628756]

約数ペア:

[(1, 20628756), (2, 10314378), (3, 6876252), (4, 5157189), (6, 3438126), (9, 2292084), (12, 1719063), (18, 1146042), (19, 1085724), (27, 764028), (36, 573021), (38, 542862), (54, 382014), (57, 361908), (76, 271431), (81, 254676), (108, 191007), (114, 180954), (162, 127338), (171, 120636), (228, 90477), (243, 84892), (324, 63669), (342, 60318), (486, 42446), (513, 40212), (684, 30159), (972, 21223), (1026, 20106), (1117, 18468), (1539, 13404), (2052, 10053), (2234, 9234), (3078, 6702), (3351, 6156), (4468, 4617)]