18208240

素因数分解:

$2^4\times 5^1\times {\mathrm{227603}}^1$

素因数の和:227616

約数の個数: 20

約数和(自身を含む): 42334344

約数和(自身を除く): 24126104

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 227603, 455206, 910412, 1138015, 1820824, 2276030, 3641648, 4552060, 9104120, 18208240]

約数ペア:

[(1, 18208240), (2, 9104120), (4, 4552060), (5, 3641648), (8, 2276030), (10, 1820824), (16, 1138015), (20, 910412), (40, 455206), (80, 227603)]