15215840

素因数分解:

$2^5\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1559}}^1$

素因数の和:1635

約数の個数: 48

約数和(自身を含む): 36560160

約数和(自身を除く): 21344320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 80, 122, 160, 244, 305, 488, 610, 976, 1220, 1559, 1952, 2440, 3118, 4880, 6236, 7795, 9760, 12472, 15590, 24944, 31180, 49888, 62360, 95099, 124720, 190198, 249440, 380396, 475495, 760792, 950990, 1521584, 1901980, 3043168, 3803960, 7607920, 15215840]

約数ペア:

[(1, 15215840), (2, 7607920), (4, 3803960), (5, 3043168), (8, 1901980), (10, 1521584), (16, 950990), (20, 760792), (32, 475495), (40, 380396), (61, 249440), (80, 190198), (122, 124720), (160, 95099), (244, 62360), (305, 49888), (488, 31180), (610, 24944), (976, 15590), (1220, 12472), (1559, 9760), (1952, 7795), (2440, 6236), (3118, 4880)]