257156728578

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{991}}^1\times {\mathrm{6961}}^1$

素因数の和:8088

約数の個数: 96

約数和(自身を含む): 592560883200

約数和(自身を除く): 335404154622

約数列:

[1, 2, 3, 6, 9, 18, 19, 38, 57, 109, 114, 171, 218, 327, 342, 654, 981, 991, 1962, 1982, 2071, 2973, 4142, 5946, 6213, 6961, 8919, 12426, 13922, 17838, 18639, 18829, 20883, 37278, 37658, 41766, 56487, 62649, 108019, 112974, 125298, 132259, 169461, 216038, 264518, 324057, 338922, 396777, 648114, 758749, 793554, 972171, 1190331, 1517498, 1944342, 2052361, 2276247, 2380662, 4104722, 4552494, 6157083, 6828741, 6898351, 12314166, 13657482, 13796702, 14416231, 18471249, 20695053, 28832462, 36942498, 41390106, 43248693, 62085159, 86497386, 124170318, 129746079, 131068669, 259492158, 262137338, 393206007, 751920259, 786412014, 1179618021, 1503840518, 2255760777, 2359236042, 4511521554, 6767282331, 13534564662, 14286484921, 28572969842, 42859454763, 85718909526, 128578364289, 257156728578]

約数ペア:

[(1, 257156728578), (2, 128578364289), (3, 85718909526), (6, 42859454763), (9, 28572969842), (18, 14286484921), (19, 13534564662), (38, 6767282331), (57, 4511521554), (109, 2359236042), (114, 2255760777), (171, 1503840518), (218, 1179618021), (327, 786412014), (342, 751920259), (654, 393206007), (981, 262137338), (991, 259492158), (1962, 131068669), (1982, 129746079), (2071, 124170318), (2973, 86497386), (4142, 62085159), (5946, 43248693), (6213, 41390106), (6961, 36942498), (8919, 28832462), (12426, 20695053), (13922, 18471249), (17838, 14416231), (18639, 13796702), (18829, 13657482), (20883, 12314166), (37278, 6898351), (37658, 6828741), (41766, 6157083), (56487, 4552494), (62649, 4104722), (108019, 2380662), (112974, 2276247), (125298, 2052361), (132259, 1944342), (169461, 1517498), (216038, 1190331), (264518, 972171), (324057, 793554), (338922, 758749), (396777, 648114)]