256091248

素因数分解:

$2^4\times 7^2\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{257}}^1$

素因数の和:351

約数の個数: 120

約数和(自身を含む): 612710784

約数和(自身を除く): 356619536

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 41, 49, 56, 62, 82, 98, 112, 124, 164, 196, 217, 248, 257, 287, 328, 392, 434, 496, 514, 574, 656, 784, 868, 1028, 1148, 1271, 1519, 1736, 1799, 2009, 2056, 2296, 2542, 3038, 3472, 3598, 4018, 4112, 4592, 5084, 6076, 7196, 7967, 8036, 8897, 10168, 10537, 12152, 12593, 14392, 15934, 16072, 17794, 20336, 21074, 24304, 25186, 28784, 31868, 32144, 35588, 42148, 50372, 55769, 62279, 63736, 71176, 73759, 84296, 100744, 111538, 124558, 127472, 142352, 147518, 168592, 201488, 223076, 249116, 295036, 326647, 390383, 446152, 498232, 516313, 590072, 653294, 780766, 892304, 996464, 1032626, 1180144, 1306588, 1561532, 2065252, 2286529, 2613176, 3123064, 4130504, 4573058, 5226352, 6246128, 8261008, 9146116, 16005703, 18292232, 32011406, 36584464, 64022812, 128045624, 256091248]

約数ペア:

[(1, 256091248), (2, 128045624), (4, 64022812), (7, 36584464), (8, 32011406), (14, 18292232), (16, 16005703), (28, 9146116), (31, 8261008), (41, 6246128), (49, 5226352), (56, 4573058), (62, 4130504), (82, 3123064), (98, 2613176), (112, 2286529), (124, 2065252), (164, 1561532), (196, 1306588), (217, 1180144), (248, 1032626), (257, 996464), (287, 892304), (328, 780766), (392, 653294), (434, 590072), (496, 516313), (514, 498232), (574, 446152), (656, 390383), (784, 326647), (868, 295036), (1028, 249116), (1148, 223076), (1271, 201488), (1519, 168592), (1736, 147518), (1799, 142352), (2009, 127472), (2056, 124558), (2296, 111538), (2542, 100744), (3038, 84296), (3472, 73759), (3598, 71176), (4018, 63736), (4112, 62279), (4592, 55769), (5084, 50372), (6076, 42148), (7196, 35588), (7967, 32144), (8036, 31868), (8897, 28784), (10168, 25186), (10537, 24304), (12152, 21074), (12593, 20336), (14392, 17794), (15934, 16072)]