18000080

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{32143}}^1$

素因数の和:32163

約数の個数: 40

約数和(自身を含む): 47830272

約数和(自身を除く): 29830192

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 32143, 64286, 128572, 160715, 225001, 257144, 321430, 450002, 514288, 642860, 900004, 1125005, 1285720, 1800008, 2250010, 2571440, 3600016, 4500020, 9000040, 18000080]

約数ペア:

[(1, 18000080), (2, 9000040), (4, 4500020), (5, 3600016), (7, 2571440), (8, 2250010), (10, 1800008), (14, 1285720), (16, 1125005), (20, 900004), (28, 642860), (35, 514288), (40, 450002), (56, 321430), (70, 257144), (80, 225001), (112, 160715), (140, 128572), (280, 64286), (560, 32143)]