19119760

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{21727}}^1$

素因数の和:21751

約数の個数: 40

約数和(自身を含む): 48496896

約数和(自身を除く): 29377136

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 21727, 43454, 86908, 108635, 173816, 217270, 238997, 347632, 434540, 477994, 869080, 955988, 1194985, 1738160, 1911976, 2389970, 3823952, 4779940, 9559880, 19119760]

約数ペア:

[(1, 19119760), (2, 9559880), (4, 4779940), (5, 3823952), (8, 2389970), (10, 1911976), (11, 1738160), (16, 1194985), (20, 955988), (22, 869080), (40, 477994), (44, 434540), (55, 347632), (80, 238997), (88, 217270), (110, 173816), (176, 108635), (220, 86908), (440, 43454), (880, 21727)]