520019890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{4000153}}^1$

素因数の和:4000173

約数の個数: 16

約数和(自身を含む): 1008038808

約数和(自身を除く): 488018918

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 4000153, 8000306, 20000765, 40001530, 52001989, 104003978, 260009945, 520019890]

約数ペア:

[(1, 520019890), (2, 260009945), (5, 104003978), (10, 52001989), (13, 40001530), (26, 20000765), (65, 8000306), (130, 4000153)]