164577440

素因数分解:

$2^5\times 5^1\times {\mathrm{787}}^1\times {\mathrm{1307}}^1$

素因数の和:2109

約数の個数: 48

約数和(自身を含む): 389606112

約数和(自身を除く): 225028672

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 787, 1307, 1574, 2614, 3148, 3935, 5228, 6296, 6535, 7870, 10456, 12592, 13070, 15740, 20912, 25184, 26140, 31480, 41824, 52280, 62960, 104560, 125920, 209120, 1028609, 2057218, 4114436, 5143045, 8228872, 10286090, 16457744, 20572180, 32915488, 41144360, 82288720, 164577440]

約数ペア:

[(1, 164577440), (2, 82288720), (4, 41144360), (5, 32915488), (8, 20572180), (10, 16457744), (16, 10286090), (20, 8228872), (32, 5143045), (40, 4114436), (80, 2057218), (160, 1028609), (787, 209120), (1307, 125920), (1574, 104560), (2614, 62960), (3148, 52280), (3935, 41824), (5228, 31480), (6296, 26140), (6535, 25184), (7870, 20912), (10456, 15740), (12592, 13070)]