1290959990

素因数分解:

$2^1\times 5^1\times {\mathrm{271}}^1\times {\mathrm{476369}}^1$

素因数の和:476647

約数の個数: 16

約数和(自身を含む): 2332307520

約数和(自身を除く): 1041347530

約数列:

[1, 2, 5, 10, 271, 542, 1355, 2710, 476369, 952738, 2381845, 4763690, 129095999, 258191998, 645479995, 1290959990]

約数ペア:

[(1, 1290959990), (2, 645479995), (5, 258191998), (10, 129095999), (271, 4763690), (542, 2381845), (1355, 952738), (2710, 476369)]