1287942710

素因数分解:

$2^1\times 5^1\times {\mathrm{881}}^1\times {\mathrm{146191}}^1$

素因数の和:147079

約数の個数: 16

約数和(自身を含む): 2320944192

約数和(自身を除く): 1033001482

約数列:

[1, 2, 5, 10, 881, 1762, 4405, 8810, 146191, 292382, 730955, 1461910, 128794271, 257588542, 643971355, 1287942710]

約数ペア:

[(1, 1287942710), (2, 643971355), (5, 257588542), (10, 128794271), (881, 1461910), (1762, 730955), (4405, 292382), (8810, 146191)]