1999660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{7691}}^1$

素因数の和:7713

約数の個数: 24

約数和(自身を含む): 4522896

約数和(自身を除く): 2523236

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 7691, 15382, 30764, 38455, 76910, 99983, 153820, 199966, 399932, 499915, 999830, 1999660]

約数ペア:

[(1, 1999660), (2, 999830), (4, 499915), (5, 399932), (10, 199966), (13, 153820), (20, 99983), (26, 76910), (52, 38455), (65, 30764), (130, 15382), (260, 7691)]