639104840

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1452511}}^1$

素因数の和:1452533

約数の個数: 32

約数和(自身を含む): 1568712960

約数和(自身を除く): 929608120

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 1452511, 2905022, 5810044, 7262555, 11620088, 14525110, 15977621, 29050220, 31955242, 58100440, 63910484, 79888105, 127820968, 159776210, 319552420, 639104840]

約数ペア:

[(1, 639104840), (2, 319552420), (4, 159776210), (5, 127820968), (8, 79888105), (10, 63910484), (11, 58100440), (20, 31955242), (22, 29050220), (40, 15977621), (44, 14525110), (55, 11620088), (88, 7262555), (110, 5810044), (220, 2905022), (440, 1452511)]