19805060

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{90023}}^1$

素因数の和:90043

約数の個数: 24

約数和(自身を含む): 45372096

約数和(自身を除く): 25567036

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 90023, 180046, 360092, 450115, 900230, 990253, 1800460, 1980506, 3961012, 4951265, 9902530, 19805060]

約数ペア:

[(1, 19805060), (2, 9902530), (4, 4951265), (5, 3961012), (10, 1980506), (11, 1800460), (20, 990253), (22, 900230), (44, 450115), (55, 360092), (110, 180046), (220, 90023)]