257388192

素因数分解:

$2^5\times 3^4\times {\mathrm{199}}^1\times {\mathrm{499}}^1$

素因数の和:720

約数の個数: 120

約数和(自身を含む): 762300000

約数和(自身を除く): 504911808

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 48, 54, 72, 81, 96, 108, 144, 162, 199, 216, 288, 324, 398, 432, 499, 597, 648, 796, 864, 998, 1194, 1296, 1497, 1592, 1791, 1996, 2388, 2592, 2994, 3184, 3582, 3992, 4491, 4776, 5373, 5988, 6368, 7164, 7984, 8982, 9552, 10746, 11976, 13473, 14328, 15968, 16119, 17964, 19104, 21492, 23952, 26946, 28656, 32238, 35928, 40419, 42984, 47904, 53892, 57312, 64476, 71856, 80838, 85968, 99301, 107784, 128952, 143712, 161676, 171936, 198602, 215568, 257904, 297903, 323352, 397204, 431136, 515808, 595806, 646704, 794408, 893709, 1191612, 1293408, 1588816, 1787418, 2383224, 2681127, 3177632, 3574836, 4766448, 5362254, 7149672, 8043381, 9532896, 10724508, 14299344, 16086762, 21449016, 28598688, 32173524, 42898032, 64347048, 85796064, 128694096, 257388192]

約数ペア:

[(1, 257388192), (2, 128694096), (3, 85796064), (4, 64347048), (6, 42898032), (8, 32173524), (9, 28598688), (12, 21449016), (16, 16086762), (18, 14299344), (24, 10724508), (27, 9532896), (32, 8043381), (36, 7149672), (48, 5362254), (54, 4766448), (72, 3574836), (81, 3177632), (96, 2681127), (108, 2383224), (144, 1787418), (162, 1588816), (199, 1293408), (216, 1191612), (288, 893709), (324, 794408), (398, 646704), (432, 595806), (499, 515808), (597, 431136), (648, 397204), (796, 323352), (864, 297903), (998, 257904), (1194, 215568), (1296, 198602), (1497, 171936), (1592, 161676), (1791, 143712), (1996, 128952), (2388, 107784), (2592, 99301), (2994, 85968), (3184, 80838), (3582, 71856), (3992, 64476), (4491, 57312), (4776, 53892), (5373, 47904), (5988, 42984), (6368, 40419), (7164, 35928), (7984, 32238), (8982, 28656), (9552, 26946), (10746, 23952), (11976, 21492), (13473, 19104), (14328, 17964), (15968, 16119)]