127284820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{489557}}^1$

素因数の和:489579

約数の個数: 24

約数和(自身を含む): 287860104

約数和(自身を除く): 160575284

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 489557, 979114, 1958228, 2447785, 4895570, 6364241, 9791140, 12728482, 25456964, 31821205, 63642410, 127284820]

約数ペア:

[(1, 127284820), (2, 63642410), (4, 31821205), (5, 25456964), (10, 12728482), (13, 9791140), (20, 6364241), (26, 4895570), (52, 2447785), (65, 1958228), (130, 979114), (260, 489557)]