640577808

素因数分解:

$2^4\times 3^4\times {\mathrm{13}}^1\times {\mathrm{193}}^1\times {\mathrm{197}}^1$

素因数の和:423

約数の個数: 200

約数和(自身を含む): 2017167768

約数和(自身を除く): 1376589960

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 27, 36, 39, 48, 52, 54, 72, 78, 81, 104, 108, 117, 144, 156, 162, 193, 197, 208, 216, 234, 312, 324, 351, 386, 394, 432, 468, 579, 591, 624, 648, 702, 772, 788, 936, 1053, 1158, 1182, 1296, 1404, 1544, 1576, 1737, 1773, 1872, 2106, 2316, 2364, 2509, 2561, 2808, 3088, 3152, 3474, 3546, 4212, 4632, 4728, 5018, 5122, 5211, 5319, 5616, 6948, 7092, 7527, 7683, 8424, 9264, 9456, 10036, 10244, 10422, 10638, 13896, 14184, 15054, 15366, 15633, 15957, 16848, 20072, 20488, 20844, 21276, 22581, 23049, 27792, 28368, 30108, 30732, 31266, 31914, 38021, 40144, 40976, 41688, 42552, 45162, 46098, 60216, 61464, 62532, 63828, 67743, 69147, 76042, 83376, 85104, 90324, 92196, 114063, 120432, 122928, 125064, 127656, 135486, 138294, 152084, 180648, 184392, 203229, 207441, 228126, 250128, 255312, 270972, 276588, 304168, 342189, 361296, 368784, 406458, 414882, 456252, 494273, 541944, 553176, 608336, 684378, 812916, 829764, 912504, 988546, 1026567, 1083888, 1106352, 1368756, 1482819, 1625832, 1659528, 1825008, 1977092, 2053134, 2737512, 2965638, 3079701, 3251664, 3319056, 3954184, 4106268, 4448457, 5475024, 5931276, 6159402, 7908368, 8212536, 8896914, 11862552, 12318804, 13345371, 16425072, 17793828, 23725104, 24637608, 26690742, 35587656, 40036113, 49275216, 53381484, 71175312, 80072226, 106762968, 160144452, 213525936, 320288904, 640577808]

約数ペア:

[(1, 640577808), (2, 320288904), (3, 213525936), (4, 160144452), (6, 106762968), (8, 80072226), (9, 71175312), (12, 53381484), (13, 49275216), (16, 40036113), (18, 35587656), (24, 26690742), (26, 24637608), (27, 23725104), (36, 17793828), (39, 16425072), (48, 13345371), (52, 12318804), (54, 11862552), (72, 8896914), (78, 8212536), (81, 7908368), (104, 6159402), (108, 5931276), (117, 5475024), (144, 4448457), (156, 4106268), (162, 3954184), (193, 3319056), (197, 3251664), (208, 3079701), (216, 2965638), (234, 2737512), (312, 2053134), (324, 1977092), (351, 1825008), (386, 1659528), (394, 1625832), (432, 1482819), (468, 1368756), (579, 1106352), (591, 1083888), (624, 1026567), (648, 988546), (702, 912504), (772, 829764), (788, 812916), (936, 684378), (1053, 608336), (1158, 553176), (1182, 541944), (1296, 494273), (1404, 456252), (1544, 414882), (1576, 406458), (1737, 368784), (1773, 361296), (1872, 342189), (2106, 304168), (2316, 276588), (2364, 270972), (2509, 255312), (2561, 250128), (2808, 228126), (3088, 207441), (3152, 203229), (3474, 184392), (3546, 180648), (4212, 152084), (4632, 138294), (4728, 135486), (5018, 127656), (5122, 125064), (5211, 122928), (5319, 120432), (5616, 114063), (6948, 92196), (7092, 90324), (7527, 85104), (7683, 83376), (8424, 76042), (9264, 69147), (9456, 67743), (10036, 63828), (10244, 62532), (10422, 61464), (10638, 60216), (13896, 46098), (14184, 45162), (15054, 42552), (15366, 41688), (15633, 40976), (15957, 40144), (16848, 38021), (20072, 31914), (20488, 31266), (20844, 30732), (21276, 30108), (22581, 28368), (23049, 27792)]