420888426

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{157}}^1$

素因数の和:300

約数の個数: 128

約数和(自身を含む): 1048412160

約数和(自身を除く): 627523734

約数列:

[1, 2, 3, 6, 7, 14, 21, 29, 31, 42, 58, 62, 71, 87, 93, 142, 157, 174, 186, 203, 213, 217, 314, 406, 426, 434, 471, 497, 609, 651, 899, 942, 994, 1099, 1218, 1302, 1491, 1798, 2059, 2198, 2201, 2697, 2982, 3297, 4118, 4402, 4553, 4867, 5394, 6177, 6293, 6594, 6603, 9106, 9734, 11147, 12354, 12586, 13206, 13659, 14413, 14601, 15407, 18879, 22294, 27318, 28826, 29202, 30814, 31871, 33441, 34069, 37758, 43239, 46221, 63742, 63829, 66882, 68138, 78029, 86478, 92442, 95613, 102207, 127658, 141143, 156058, 191226, 191487, 204414, 234087, 282286, 323263, 345557, 382974, 423429, 446803, 468174, 646526, 691114, 846858, 893606, 969789, 988001, 1036671, 1340409, 1939578, 1976002, 2073342, 2262841, 2418899, 2680818, 2964003, 4525682, 4837798, 5928006, 6788523, 7256697, 10021153, 13577046, 14513394, 20042306, 30063459, 60126918, 70148071, 140296142, 210444213, 420888426]

約数ペア:

[(1, 420888426), (2, 210444213), (3, 140296142), (6, 70148071), (7, 60126918), (14, 30063459), (21, 20042306), (29, 14513394), (31, 13577046), (42, 10021153), (58, 7256697), (62, 6788523), (71, 5928006), (87, 4837798), (93, 4525682), (142, 2964003), (157, 2680818), (174, 2418899), (186, 2262841), (203, 2073342), (213, 1976002), (217, 1939578), (314, 1340409), (406, 1036671), (426, 988001), (434, 969789), (471, 893606), (497, 846858), (609, 691114), (651, 646526), (899, 468174), (942, 446803), (994, 423429), (1099, 382974), (1218, 345557), (1302, 323263), (1491, 282286), (1798, 234087), (2059, 204414), (2198, 191487), (2201, 191226), (2697, 156058), (2982, 141143), (3297, 127658), (4118, 102207), (4402, 95613), (4553, 92442), (4867, 86478), (5394, 78029), (6177, 68138), (6293, 66882), (6594, 63829), (6603, 63742), (9106, 46221), (9734, 43239), (11147, 37758), (12354, 34069), (12586, 33441), (13206, 31871), (13659, 30814), (14413, 29202), (14601, 28826), (15407, 27318), (18879, 22294)]