19039780

素因数分解:

$2^2\times 5^1\times {\mathrm{613}}^1\times {\mathrm{1553}}^1$

素因数の和:2175

約数の個数: 24

約数和(自身を含む): 40074552

約数和(自身を除く): 21034772

約数列:

[1, 2, 4, 5, 10, 20, 613, 1226, 1553, 2452, 3065, 3106, 6130, 6212, 7765, 12260, 15530, 31060, 951989, 1903978, 3807956, 4759945, 9519890, 19039780]

約数ペア:

[(1, 19039780), (2, 9519890), (4, 4759945), (5, 3807956), (10, 1903978), (20, 951989), (613, 31060), (1226, 15530), (1553, 12260), (2452, 7765), (3065, 6212), (3106, 6130)]