64423820

素因数分解:

$2^2\times 5^1\times {\mathrm{787}}^1\times {\mathrm{4093}}^1$

素因数の和:4889

約数の個数: 24

約数和(自身を含む): 135495024

約数和(自身を除く): 71071204

約数列:

[1, 2, 4, 5, 10, 20, 787, 1574, 3148, 3935, 4093, 7870, 8186, 15740, 16372, 20465, 40930, 81860, 3221191, 6442382, 12884764, 16105955, 32211910, 64423820]

約数ペア:

[(1, 64423820), (2, 32211910), (4, 16105955), (5, 12884764), (10, 6442382), (20, 3221191), (787, 81860), (1574, 40930), (3148, 20465), (3935, 16372), (4093, 15740), (7870, 8186)]