222020

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{653}}^1$

素因数の和:679

約数の個数: 24

約数和(自身を含む): 494424

約数和(自身を除く): 272404

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 653, 1306, 2612, 3265, 6530, 11101, 13060, 22202, 44404, 55505, 111010, 222020]

約数ペア:

[(1, 222020), (2, 111010), (4, 55505), (5, 44404), (10, 22202), (17, 13060), (20, 11101), (34, 6530), (68, 3265), (85, 2612), (170, 1306), (340, 653)]