1780408090

素因数分解:

$2^1\times 5^1\times {\mathrm{521}}^1\times {\mathrm{341729}}^1$

素因数の和:342257

約数の個数: 16

約数和(自身を含む): 3210895080

約数和(自身を除く): 1430486990

約数列:

[1, 2, 5, 10, 521, 1042, 2605, 5210, 341729, 683458, 1708645, 3417290, 178040809, 356081618, 890204045, 1780408090]

約数ペア:

[(1, 1780408090), (2, 890204045), (5, 356081618), (10, 178040809), (521, 3417290), (1042, 1708645), (2605, 683458), (5210, 341729)]