205421008

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{881}}^1$

素因数の和:980

約数の個数: 80

約数和(自身を含む): 459345600

約数和(自身を除く): 253924592

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 52, 59, 76, 104, 118, 152, 208, 236, 247, 304, 472, 494, 767, 881, 944, 988, 1121, 1534, 1762, 1976, 2242, 3068, 3524, 3952, 4484, 6136, 7048, 8968, 11453, 12272, 14096, 14573, 16739, 17936, 22906, 29146, 33478, 45812, 51979, 58292, 66956, 91624, 103958, 116584, 133912, 183248, 207916, 217607, 233168, 267824, 415832, 435214, 675727, 831664, 870428, 987601, 1351454, 1740856, 1975202, 2702908, 3481712, 3950404, 5405816, 7900808, 10811632, 12838813, 15801616, 25677626, 51355252, 102710504, 205421008]

約数ペア:

[(1, 205421008), (2, 102710504), (4, 51355252), (8, 25677626), (13, 15801616), (16, 12838813), (19, 10811632), (26, 7900808), (38, 5405816), (52, 3950404), (59, 3481712), (76, 2702908), (104, 1975202), (118, 1740856), (152, 1351454), (208, 987601), (236, 870428), (247, 831664), (304, 675727), (472, 435214), (494, 415832), (767, 267824), (881, 233168), (944, 217607), (988, 207916), (1121, 183248), (1534, 133912), (1762, 116584), (1976, 103958), (2242, 91624), (3068, 66956), (3524, 58292), (3952, 51979), (4484, 45812), (6136, 33478), (7048, 29146), (8968, 22906), (11453, 17936), (12272, 16739), (14096, 14573)]