20132649760

素因数分解:

$2^5\times 5^1\times {\mathrm{251}}^1\times {\mathrm{491}}^1\times {\mathrm{1021}}^1$

素因数の和:1778

約数の個数: 96

約数和(自身を含む): 47897002944

約数和(自身を除く): 27764353184

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 251, 491, 502, 982, 1004, 1021, 1255, 1964, 2008, 2042, 2455, 2510, 3928, 4016, 4084, 4910, 5020, 5105, 7856, 8032, 8168, 9820, 10040, 10210, 15712, 16336, 19640, 20080, 20420, 32672, 39280, 40160, 40840, 78560, 81680, 123241, 163360, 246482, 256271, 492964, 501311, 512542, 616205, 985928, 1002622, 1025084, 1232410, 1281355, 1971856, 2005244, 2050168, 2464820, 2506555, 2562710, 3943712, 4010488, 4100336, 4929640, 5013110, 5125420, 8020976, 8200672, 9859280, 10026220, 10250840, 16041952, 19718560, 20052440, 20501680, 40104880, 41003360, 80209760, 125829061, 251658122, 503316244, 629145305, 1006632488, 1258290610, 2013264976, 2516581220, 4026529952, 5033162440, 10066324880, 20132649760]

約数ペア:

[(1, 20132649760), (2, 10066324880), (4, 5033162440), (5, 4026529952), (8, 2516581220), (10, 2013264976), (16, 1258290610), (20, 1006632488), (32, 629145305), (40, 503316244), (80, 251658122), (160, 125829061), (251, 80209760), (491, 41003360), (502, 40104880), (982, 20501680), (1004, 20052440), (1021, 19718560), (1255, 16041952), (1964, 10250840), (2008, 10026220), (2042, 9859280), (2455, 8200672), (2510, 8020976), (3928, 5125420), (4016, 5013110), (4084, 4929640), (4910, 4100336), (5020, 4010488), (5105, 3943712), (7856, 2562710), (8032, 2506555), (8168, 2464820), (9820, 2050168), (10040, 2005244), (10210, 1971856), (15712, 1281355), (16336, 1232410), (19640, 1025084), (20080, 1002622), (20420, 985928), (32672, 616205), (39280, 512542), (40160, 501311), (40840, 492964), (78560, 256271), (81680, 246482), (123241, 163360)]