251904016

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{5581}}^1$

素因数の和:5640

約数の個数: 80

約数和(自身を含む): 620182528

約数和(自身を除く): 368278512

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 31, 52, 56, 62, 91, 104, 112, 124, 182, 208, 217, 248, 364, 403, 434, 496, 728, 806, 868, 1456, 1612, 1736, 2821, 3224, 3472, 5581, 5642, 6448, 11162, 11284, 22324, 22568, 39067, 44648, 45136, 72553, 78134, 89296, 145106, 156268, 173011, 290212, 312536, 346022, 507871, 580424, 625072, 692044, 1015742, 1160848, 1211077, 1384088, 2031484, 2249143, 2422154, 2768176, 4062968, 4498286, 4844308, 8125936, 8996572, 9688616, 15744001, 17993144, 19377232, 31488002, 35986288, 62976004, 125952008, 251904016]

約数ペア:

[(1, 251904016), (2, 125952008), (4, 62976004), (7, 35986288), (8, 31488002), (13, 19377232), (14, 17993144), (16, 15744001), (26, 9688616), (28, 8996572), (31, 8125936), (52, 4844308), (56, 4498286), (62, 4062968), (91, 2768176), (104, 2422154), (112, 2249143), (124, 2031484), (182, 1384088), (208, 1211077), (217, 1160848), (248, 1015742), (364, 692044), (403, 625072), (434, 580424), (496, 507871), (728, 346022), (806, 312536), (868, 290212), (1456, 173011), (1612, 156268), (1736, 145106), (2821, 89296), (3224, 78134), (3472, 72553), (5581, 45136), (5642, 44648), (6448, 39067), (11162, 22568), (11284, 22324)]