643707648

素因数分解:

$2^8\times 3^4\times {\mathrm{37}}^1\times {\mathrm{839}}^1$

素因数の和:904

約数の個数: 180

約数和(自身を含む): 1973645520

約数和(自身を除く): 1329937872

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 37, 48, 54, 64, 72, 74, 81, 96, 108, 111, 128, 144, 148, 162, 192, 216, 222, 256, 288, 296, 324, 333, 384, 432, 444, 576, 592, 648, 666, 768, 839, 864, 888, 999, 1152, 1184, 1296, 1332, 1678, 1728, 1776, 1998, 2304, 2368, 2517, 2592, 2664, 2997, 3356, 3456, 3552, 3996, 4736, 5034, 5184, 5328, 5994, 6712, 6912, 7104, 7551, 7992, 9472, 10068, 10368, 10656, 11988, 13424, 14208, 15102, 15984, 20136, 20736, 21312, 22653, 23976, 26848, 28416, 30204, 31043, 31968, 40272, 42624, 45306, 47952, 53696, 60408, 62086, 63936, 67959, 80544, 85248, 90612, 93129, 95904, 107392, 120816, 124172, 127872, 135918, 161088, 181224, 186258, 191808, 214784, 241632, 248344, 255744, 271836, 279387, 322176, 362448, 372516, 383616, 483264, 496688, 543672, 558774, 644352, 724896, 745032, 767232, 838161, 966528, 993376, 1087344, 1117548, 1449792, 1490064, 1676322, 1933056, 1986752, 2174688, 2235096, 2514483, 2899584, 2980128, 3352644, 3973504, 4349376, 4470192, 5028966, 5799168, 5960256, 6705288, 7947008, 8698752, 8940384, 10057932, 11920512, 13410576, 17397504, 17880768, 20115864, 23841024, 26821152, 35761536, 40231728, 53642304, 71523072, 80463456, 107284608, 160926912, 214569216, 321853824, 643707648]

約数ペア:

[(1, 643707648), (2, 321853824), (3, 214569216), (4, 160926912), (6, 107284608), (8, 80463456), (9, 71523072), (12, 53642304), (16, 40231728), (18, 35761536), (24, 26821152), (27, 23841024), (32, 20115864), (36, 17880768), (37, 17397504), (48, 13410576), (54, 11920512), (64, 10057932), (72, 8940384), (74, 8698752), (81, 7947008), (96, 6705288), (108, 5960256), (111, 5799168), (128, 5028966), (144, 4470192), (148, 4349376), (162, 3973504), (192, 3352644), (216, 2980128), (222, 2899584), (256, 2514483), (288, 2235096), (296, 2174688), (324, 1986752), (333, 1933056), (384, 1676322), (432, 1490064), (444, 1449792), (576, 1117548), (592, 1087344), (648, 993376), (666, 966528), (768, 838161), (839, 767232), (864, 745032), (888, 724896), (999, 644352), (1152, 558774), (1184, 543672), (1296, 496688), (1332, 483264), (1678, 383616), (1728, 372516), (1776, 362448), (1998, 322176), (2304, 279387), (2368, 271836), (2517, 255744), (2592, 248344), (2664, 241632), (2997, 214784), (3356, 191808), (3456, 186258), (3552, 181224), (3996, 161088), (4736, 135918), (5034, 127872), (5184, 124172), (5328, 120816), (5994, 107392), (6712, 95904), (6912, 93129), (7104, 90612), (7551, 85248), (7992, 80544), (9472, 67959), (10068, 63936), (10368, 62086), (10656, 60408), (11988, 53696), (13424, 47952), (14208, 45306), (15102, 42624), (15984, 40272), (20136, 31968), (20736, 31043), (21312, 30204), (22653, 28416), (23976, 26848)]