19619780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{51631}}^1$

素因数の和:51659

約数の個数: 24

約数和(自身を含む): 43370880

約数和(自身を除く): 23751100

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 51631, 103262, 206524, 258155, 516310, 980989, 1032620, 1961978, 3923956, 4904945, 9809890, 19619780]

約数ペア:

[(1, 19619780), (2, 9809890), (4, 4904945), (5, 3923956), (10, 1961978), (19, 1032620), (20, 980989), (38, 516310), (76, 258155), (95, 206524), (190, 103262), (380, 51631)]