1278903555

素因数分解:

$3^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{204461}}^1$

素因数の和:204611

約数の個数: 24

約数和(自身を含む): 2232725040

約数和(自身を除く): 953821485

約数列:

[1, 3, 5, 9, 15, 45, 139, 417, 695, 1251, 2085, 6255, 204461, 613383, 1022305, 1840149, 3066915, 9200745, 28420079, 85260237, 142100395, 255780711, 426301185, 1278903555]

約数ペア:

[(1, 1278903555), (3, 426301185), (5, 255780711), (9, 142100395), (15, 85260237), (45, 28420079), (139, 9200745), (417, 3066915), (695, 1840149), (1251, 1022305), (2085, 613383), (6255, 204461)]