42981460

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{10909}}^1$

素因数の和:11115

約数の個数: 24

約数和(自身を含む): 90727560

約数和(自身を除く): 47746100

約数列:

[1, 2, 4, 5, 10, 20, 197, 394, 788, 985, 1970, 3940, 10909, 21818, 43636, 54545, 109090, 218180, 2149073, 4298146, 8596292, 10745365, 21490730, 42981460]

約数ペア:

[(1, 42981460), (2, 21490730), (4, 10745365), (5, 8596292), (10, 4298146), (20, 2149073), (197, 218180), (394, 109090), (788, 54545), (985, 43636), (1970, 21818), (3940, 10909)]