139159720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{496999}}^1$

素因数の和:497017

約数の個数: 32

約数和(自身を含む): 357840000

約数和(自身を除く): 218680280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 496999, 993998, 1987996, 2484995, 3478993, 3975992, 4969990, 6957986, 9939980, 13915972, 17394965, 19879960, 27831944, 34789930, 69579860, 139159720]

約数ペア:

[(1, 139159720), (2, 69579860), (4, 34789930), (5, 27831944), (7, 19879960), (8, 17394965), (10, 13915972), (14, 9939980), (20, 6957986), (28, 4969990), (35, 3975992), (40, 3478993), (56, 2484995), (70, 1987996), (140, 993998), (280, 496999)]