28244190

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{72421}}^1$

素因数の和:72444

約数の個数: 32

約数和(自身を含む): 73001376

約数和(自身を除く): 44757186

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 72421, 144842, 217263, 362105, 434526, 724210, 941473, 1086315, 1882946, 2172630, 2824419, 4707365, 5648838, 9414730, 14122095, 28244190]

約数ペア:

[(1, 28244190), (2, 14122095), (3, 9414730), (5, 5648838), (6, 4707365), (10, 2824419), (13, 2172630), (15, 1882946), (26, 1086315), (30, 941473), (39, 724210), (65, 434526), (78, 362105), (130, 217263), (195, 144842), (390, 72421)]