18641240

素因数分解:

$2^3\times 5^1\times {\mathrm{227}}^1\times {\mathrm{2053}}^1$

素因数の和:2291

約数の個数: 32

約数和(自身を含む): 42148080

約数和(自身を除く): 23506840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 227, 454, 908, 1135, 1816, 2053, 2270, 4106, 4540, 8212, 9080, 10265, 16424, 20530, 41060, 82120, 466031, 932062, 1864124, 2330155, 3728248, 4660310, 9320620, 18641240]

約数ペア:

[(1, 18641240), (2, 9320620), (4, 4660310), (5, 3728248), (8, 2330155), (10, 1864124), (20, 932062), (40, 466031), (227, 82120), (454, 41060), (908, 20530), (1135, 16424), (1816, 10265), (2053, 9080), (2270, 8212), (4106, 4540)]