19452140

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{8923}}^1$

素因数の和:9041

約数の個数: 24

約数和(自身を含む): 41228880

約数和(自身を除く): 21776740

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 8923, 17846, 35692, 44615, 89230, 178460, 972607, 1945214, 3890428, 4863035, 9726070, 19452140]

約数ペア:

[(1, 19452140), (2, 9726070), (4, 4863035), (5, 3890428), (10, 1945214), (20, 972607), (109, 178460), (218, 89230), (436, 44615), (545, 35692), (1090, 17846), (2180, 8923)]