18290020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{130643}}^1$

素因数の和:130659

約数の個数: 24

約数和(自身を含む): 43896384

約数和(自身を除く): 25606364

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 130643, 261286, 522572, 653215, 914501, 1306430, 1829002, 2612860, 3658004, 4572505, 9145010, 18290020]

約数ペア:

[(1, 18290020), (2, 9145010), (4, 4572505), (5, 3658004), (7, 2612860), (10, 1829002), (14, 1306430), (20, 914501), (28, 653215), (35, 522572), (70, 261286), (140, 130643)]