11887960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{42457}}^1$

素因数の和:42475

約数の個数: 32

約数和(自身を含む): 30569760

約数和(自身を除く): 18681800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 42457, 84914, 169828, 212285, 297199, 339656, 424570, 594398, 849140, 1188796, 1485995, 1698280, 2377592, 2971990, 5943980, 11887960]

約数ペア:

[(1, 11887960), (2, 5943980), (4, 2971990), (5, 2377592), (7, 1698280), (8, 1485995), (10, 1188796), (14, 849140), (20, 594398), (28, 424570), (35, 339656), (40, 297199), (56, 212285), (70, 169828), (140, 84914), (280, 42457)]