1271989990

素因数分解:

$2^1\times 5^1\times {\mathrm{271}}^1\times {\mathrm{469369}}^1$

素因数の和:469647

約数の個数: 16

約数和(自身を含む): 2298035520

約数和(自身を除く): 1026045530

約数列:

[1, 2, 5, 10, 271, 542, 1355, 2710, 469369, 938738, 2346845, 4693690, 127198999, 254397998, 635994995, 1271989990]

約数ペア:

[(1, 1271989990), (2, 635994995), (5, 254397998), (10, 127198999), (271, 4693690), (542, 2346845), (1355, 938738), (2710, 469369)]