65647940

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{48991}}^1$

素因数の和:49067

約数の個数: 24

約数和(自身を含む): 139921152

約数和(自身を除く): 74273212

約数列:

[1, 2, 4, 5, 10, 20, 67, 134, 268, 335, 670, 1340, 48991, 97982, 195964, 244955, 489910, 979820, 3282397, 6564794, 13129588, 16411985, 32823970, 65647940]

約数ペア:

[(1, 65647940), (2, 32823970), (4, 16411985), (5, 13129588), (10, 6564794), (20, 3282397), (67, 979820), (134, 489910), (268, 244955), (335, 195964), (670, 97982), (1340, 48991)]