256141440

素因数分解:

$2^7\times 3^8\times 5^1\times {\mathrm{61}}^1$

素因数の和:104

約数の個数: 288

約数和(自身を含む): 933517260

約数和(自身を除く): 677375820

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 61, 64, 72, 80, 81, 90, 96, 108, 120, 122, 128, 135, 144, 160, 162, 180, 183, 192, 216, 240, 243, 244, 270, 288, 305, 320, 324, 360, 366, 384, 405, 432, 480, 486, 488, 540, 549, 576, 610, 640, 648, 720, 729, 732, 810, 864, 915, 960, 972, 976, 1080, 1098, 1152, 1215, 1220, 1296, 1440, 1458, 1464, 1620, 1647, 1728, 1830, 1920, 1944, 1952, 2160, 2187, 2196, 2430, 2440, 2592, 2745, 2880, 2916, 2928, 3240, 3294, 3456, 3645, 3660, 3888, 3904, 4320, 4374, 4392, 4860, 4880, 4941, 5184, 5490, 5760, 5832, 5856, 6480, 6561, 6588, 7290, 7320, 7776, 7808, 8235, 8640, 8748, 8784, 9720, 9760, 9882, 10368, 10935, 10980, 11664, 11712, 12960, 13122, 13176, 14580, 14640, 14823, 15552, 16470, 17280, 17496, 17568, 19440, 19520, 19764, 21870, 21960, 23328, 23424, 24705, 25920, 26244, 26352, 29160, 29280, 29646, 31104, 32805, 32940, 34992, 35136, 38880, 39040, 39528, 43740, 43920, 44469, 46656, 49410, 51840, 52488, 52704, 58320, 58560, 59292, 65610, 65880, 69984, 70272, 74115, 77760, 79056, 87480, 87840, 88938, 93312, 98820, 104976, 105408, 116640, 117120, 118584, 131220, 131760, 133407, 139968, 148230, 155520, 158112, 174960, 175680, 177876, 197640, 209952, 210816, 222345, 233280, 237168, 262440, 263520, 266814, 279936, 296460, 316224, 349920, 351360, 355752, 395280, 400221, 419904, 444690, 466560, 474336, 524880, 527040, 533628, 592920, 632448, 667035, 699840, 711504, 790560, 800442, 839808, 889380, 948672, 1049760, 1054080, 1067256, 1185840, 1334070, 1399680, 1423008, 1581120, 1600884, 1778760, 1897344, 2001105, 2099520, 2134512, 2371680, 2668140, 2846016, 3162240, 3201768, 3557520, 4002210, 4199040, 4269024, 4743360, 5336280, 5692032, 6403536, 7115040, 8004420, 8538048, 9486720, 10672560, 12807072, 14230080, 16008840, 17076096, 21345120, 25614144, 28460160, 32017680, 42690240, 51228288, 64035360, 85380480, 128070720, 256141440]

約数ペア:

[(1, 256141440), (2, 128070720), (3, 85380480), (4, 64035360), (5, 51228288), (6, 42690240), (8, 32017680), (9, 28460160), (10, 25614144), (12, 21345120), (15, 17076096), (16, 16008840), (18, 14230080), (20, 12807072), (24, 10672560), (27, 9486720), (30, 8538048), (32, 8004420), (36, 7115040), (40, 6403536), (45, 5692032), (48, 5336280), (54, 4743360), (60, 4269024), (61, 4199040), (64, 4002210), (72, 3557520), (80, 3201768), (81, 3162240), (90, 2846016), (96, 2668140), (108, 2371680), (120, 2134512), (122, 2099520), (128, 2001105), (135, 1897344), (144, 1778760), (160, 1600884), (162, 1581120), (180, 1423008), (183, 1399680), (192, 1334070), (216, 1185840), (240, 1067256), (243, 1054080), (244, 1049760), (270, 948672), (288, 889380), (305, 839808), (320, 800442), (324, 790560), (360, 711504), (366, 699840), (384, 667035), (405, 632448), (432, 592920), (480, 533628), (486, 527040), (488, 524880), (540, 474336), (549, 466560), (576, 444690), (610, 419904), (640, 400221), (648, 395280), (720, 355752), (729, 351360), (732, 349920), (810, 316224), (864, 296460), (915, 279936), (960, 266814), (972, 263520), (976, 262440), (1080, 237168), (1098, 233280), (1152, 222345), (1215, 210816), (1220, 209952), (1296, 197640), (1440, 177876), (1458, 175680), (1464, 174960), (1620, 158112), (1647, 155520), (1728, 148230), (1830, 139968), (1920, 133407), (1944, 131760), (1952, 131220), (2160, 118584), (2187, 117120), (2196, 116640), (2430, 105408), (2440, 104976), (2592, 98820), (2745, 93312), (2880, 88938), (2916, 87840), (2928, 87480), (3240, 79056), (3294, 77760), (3456, 74115), (3645, 70272), (3660, 69984), (3888, 65880), (3904, 65610), (4320, 59292), (4374, 58560), (4392, 58320), (4860, 52704), (4880, 52488), (4941, 51840), (5184, 49410), (5490, 46656), (5760, 44469), (5832, 43920), (5856, 43740), (6480, 39528), (6561, 39040), (6588, 38880), (7290, 35136), (7320, 34992), (7776, 32940), (7808, 32805), (8235, 31104), (8640, 29646), (8748, 29280), (8784, 29160), (9720, 26352), (9760, 26244), (9882, 25920), (10368, 24705), (10935, 23424), (10980, 23328), (11664, 21960), (11712, 21870), (12960, 19764), (13122, 19520), (13176, 19440), (14580, 17568), (14640, 17496), (14823, 17280), (15552, 16470)]