19991650

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{57119}}^1$

素因数の和:57138

約数の個数: 24

約数和(自身を含む): 42497280

約数和(自身を除く): 22505630

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 175, 350, 57119, 114238, 285595, 399833, 571190, 799666, 1427975, 1999165, 2855950, 3998330, 9995825, 19991650]

約数ペア:

[(1, 19991650), (2, 9995825), (5, 3998330), (7, 2855950), (10, 1999165), (14, 1427975), (25, 799666), (35, 571190), (50, 399833), (70, 285595), (175, 114238), (350, 57119)]