4500020

素因数分解:

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

素因数の和:32159

約数の個数: 24

約数和(自身を含む): 10800384

約数和(自身を除く): 6300364

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 32143, 64286, 128572, 160715, 225001, 321430, 450002, 642860, 900004, 1125005, 2250010, 4500020]

約数ペア:

[(1, 4500020), (2, 2250010), (4, 1125005), (5, 900004), (7, 642860), (10, 450002), (14, 321430), (20, 225001), (28, 160715), (35, 128572), (70, 64286), (140, 32143)]