30939440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{55249}}^1$

素因数の和:55269

約数の個数: 40

約数和(自身を含む): 82212000

約数和(自身を除く): 51272560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 55249, 110498, 220996, 276245, 386743, 441992, 552490, 773486, 883984, 1104980, 1546972, 1933715, 2209960, 3093944, 3867430, 4419920, 6187888, 7734860, 15469720, 30939440]

約数ペア:

[(1, 30939440), (2, 15469720), (4, 7734860), (5, 6187888), (7, 4419920), (8, 3867430), (10, 3093944), (14, 2209960), (16, 1933715), (20, 1546972), (28, 1104980), (35, 883984), (40, 773486), (56, 552490), (70, 441992), (80, 386743), (112, 276245), (140, 220996), (280, 110498), (560, 55249)]