261881856

素因数分解:

$2^{18}\times 3^3\times {\mathrm{37}}^1$

素因数の和:82

約数の個数: 152

約数和(自身を含む): 796916240

約数和(自身を除く): 535034384

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 37, 48, 54, 64, 72, 74, 96, 108, 111, 128, 144, 148, 192, 216, 222, 256, 288, 296, 333, 384, 432, 444, 512, 576, 592, 666, 768, 864, 888, 999, 1024, 1152, 1184, 1332, 1536, 1728, 1776, 1998, 2048, 2304, 2368, 2664, 3072, 3456, 3552, 3996, 4096, 4608, 4736, 5328, 6144, 6912, 7104, 7992, 8192, 9216, 9472, 10656, 12288, 13824, 14208, 15984, 16384, 18432, 18944, 21312, 24576, 27648, 28416, 31968, 32768, 36864, 37888, 42624, 49152, 55296, 56832, 63936, 65536, 73728, 75776, 85248, 98304, 110592, 113664, 127872, 131072, 147456, 151552, 170496, 196608, 221184, 227328, 255744, 262144, 294912, 303104, 340992, 393216, 442368, 454656, 511488, 589824, 606208, 681984, 786432, 884736, 909312, 1022976, 1179648, 1212416, 1363968, 1769472, 1818624, 2045952, 2359296, 2424832, 2727936, 3538944, 3637248, 4091904, 4849664, 5455872, 7077888, 7274496, 8183808, 9699328, 10911744, 14548992, 16367616, 21823488, 29097984, 32735232, 43646976, 65470464, 87293952, 130940928, 261881856]

約数ペア:

[(1, 261881856), (2, 130940928), (3, 87293952), (4, 65470464), (6, 43646976), (8, 32735232), (9, 29097984), (12, 21823488), (16, 16367616), (18, 14548992), (24, 10911744), (27, 9699328), (32, 8183808), (36, 7274496), (37, 7077888), (48, 5455872), (54, 4849664), (64, 4091904), (72, 3637248), (74, 3538944), (96, 2727936), (108, 2424832), (111, 2359296), (128, 2045952), (144, 1818624), (148, 1769472), (192, 1363968), (216, 1212416), (222, 1179648), (256, 1022976), (288, 909312), (296, 884736), (333, 786432), (384, 681984), (432, 606208), (444, 589824), (512, 511488), (576, 454656), (592, 442368), (666, 393216), (768, 340992), (864, 303104), (888, 294912), (999, 262144), (1024, 255744), (1152, 227328), (1184, 221184), (1332, 196608), (1536, 170496), (1728, 151552), (1776, 147456), (1998, 131072), (2048, 127872), (2304, 113664), (2368, 110592), (2664, 98304), (3072, 85248), (3456, 75776), (3552, 73728), (3996, 65536), (4096, 63936), (4608, 56832), (4736, 55296), (5328, 49152), (6144, 42624), (6912, 37888), (7104, 36864), (7992, 32768), (8192, 31968), (9216, 28416), (9472, 27648), (10656, 24576), (12288, 21312), (13824, 18944), (14208, 18432), (15984, 16384)]