19442480

素因数分解:

$2^4\times 5^1\times {\mathrm{243031}}^1$

素因数の和:243044

約数の個数: 20

約数和(自身を含む): 45203952

約数和(自身を除く): 25761472

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 243031, 486062, 972124, 1215155, 1944248, 2430310, 3888496, 4860620, 9721240, 19442480]

約数ペア:

[(1, 19442480), (2, 9721240), (4, 4860620), (5, 3888496), (8, 2430310), (10, 1944248), (16, 1215155), (20, 972124), (40, 486062), (80, 243031)]