391492568

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{113}}^1\times {\mathrm{991}}^1$

素因数の和:1152

約数の個数: 64

約数和(自身を含む): 814233600

約数和(自身を除く): 422741032

約数列:

[1, 2, 4, 8, 19, 23, 38, 46, 76, 92, 113, 152, 184, 226, 437, 452, 874, 904, 991, 1748, 1982, 2147, 2599, 3496, 3964, 4294, 5198, 7928, 8588, 10396, 17176, 18829, 20792, 22793, 37658, 45586, 49381, 75316, 91172, 98762, 111983, 150632, 182344, 197524, 223966, 395048, 433067, 447932, 866134, 895864, 1732268, 2127677, 2575609, 3464536, 4255354, 5151218, 8510708, 10302436, 17021416, 20604872, 48936571, 97873142, 195746284, 391492568]

約数ペア:

[(1, 391492568), (2, 195746284), (4, 97873142), (8, 48936571), (19, 20604872), (23, 17021416), (38, 10302436), (46, 8510708), (76, 5151218), (92, 4255354), (113, 3464536), (152, 2575609), (184, 2127677), (226, 1732268), (437, 895864), (452, 866134), (874, 447932), (904, 433067), (991, 395048), (1748, 223966), (1982, 197524), (2147, 182344), (2599, 150632), (3496, 111983), (3964, 98762), (4294, 91172), (5198, 75316), (7928, 49381), (8588, 45586), (10396, 37658), (17176, 22793), (18829, 20792)]