19365520

素因数分解:

$2^4\times 5^1\times {\mathrm{242069}}^1$

素因数の和:242082

約数の個数: 20

約数和(自身を含む): 45025020

約数和(自身を除く): 25659500

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 242069, 484138, 968276, 1210345, 1936552, 2420690, 3873104, 4841380, 9682760, 19365520]

約数ペア:

[(1, 19365520), (2, 9682760), (4, 4841380), (5, 3873104), (8, 2420690), (10, 1936552), (16, 1210345), (20, 968276), (40, 484138), (80, 242069)]