18559840

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{8923}}^1$

素因数の和:8951

約数の個数: 48

約数和(自身を含む): 47225808

約数和(自身を除く): 28665968

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 416, 520, 1040, 2080, 8923, 17846, 35692, 44615, 71384, 89230, 115999, 142768, 178460, 231998, 285536, 356920, 463996, 579995, 713840, 927992, 1159990, 1427680, 1855984, 2319980, 3711968, 4639960, 9279920, 18559840]

約数ペア:

[(1, 18559840), (2, 9279920), (4, 4639960), (5, 3711968), (8, 2319980), (10, 1855984), (13, 1427680), (16, 1159990), (20, 927992), (26, 713840), (32, 579995), (40, 463996), (52, 356920), (65, 285536), (80, 231998), (104, 178460), (130, 142768), (160, 115999), (208, 89230), (260, 71384), (416, 44615), (520, 35692), (1040, 17846), (2080, 8923)]