287899978

素因数分解:

$2^1\times {\mathrm{107}}^1\times {\mathrm{673}}^1\times {\mathrm{1999}}^1$

素因数の和:2781

約数の個数: 16

約数和(自身を含む): 436752000

約数和(自身を除く): 148852022

約数列:

[1, 2, 107, 214, 673, 1346, 1999, 3998, 72011, 144022, 213893, 427786, 1345327, 2690654, 143949989, 287899978]

約数ペア:

[(1, 287899978), (2, 143949989), (107, 2690654), (214, 1345327), (673, 427786), (1346, 213893), (1999, 144022), (3998, 72011)]