19561240

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{9227}}^1$

素因数の和:9291

約数の個数: 32

約数和(自身を含む): 44848080

約数和(自身を除く): 25286840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 9227, 18454, 36908, 46135, 73816, 92270, 184540, 369080, 489031, 978062, 1956124, 2445155, 3912248, 4890310, 9780620, 19561240]

約数ペア:

[(1, 19561240), (2, 9780620), (4, 4890310), (5, 3912248), (8, 2445155), (10, 1956124), (20, 978062), (40, 489031), (53, 369080), (106, 184540), (212, 92270), (265, 73816), (424, 46135), (530, 36908), (1060, 18454), (2120, 9227)]